Chin v. Port Authority of New York & New Jersey , 685 F.3d 135 ( 2012 )


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  • 10-1904-cv (L)
    Chin v. Port Auth. of N.Y. & N.J.
    United States Court of Appeals
    FOR THE SECOND CIRCUIT
    August Term 2011
    (Argued: October 17, 2011               Decided: July 10, 2012)
    Nos. 10-1904-cv(L), 10-2031-cv(XAP)
    _____________________________________
    HOWARD CHIN, RICHARD WONG, SANRIT BOONCOME, MICHAEL CHUNG,
    Plaintiffs-Appellees–Cross-Appellants,
    THE PORT AUTHORITY POLICE ASIAN JADE SOCIETY OF NEW YORK & NEW
    JERSEY INC., CHRISTIAN ENG, NICHOLAS YUM, ALAN LEW, DAVID LIM, GEORGE
    MARTINEZ, STANLEY CHIN, MILTON FONG,
    Plaintiffs-Appellees,
    -v.-
    THE PORT AUTHORITY OF NEW YORK & NEW JERSEY,
    Defendant-Appellant–Cross-Appellee.
    _____________________________________
    Before:          MCLAUGHLIN, CABRANES, and LIVINGSTON, Circuit Judges.
    Defendant-appellant the Port Authority of New York and New Jersey, Inc.
    (“Port Authority”) and plaintiff-appellants Howard Chin, Richard Wong, Sanrit
    Booncome, and Michael Chung appeal from a judgment of the United States
    District Court for the Southern District of New York (Miriam Goldman
    Cedarbaum, Judge) holding, after a jury trial, that the Port Authority violated
    Title VII of the Civil Rights Act of 1964 by failing to promote seven plaintiffs,
    and awarding plaintiffs-appellees Christian Eng, Nicholas Yum, Alan Lew,
    David Lim, George Martinez, Stanley Chin, and Milton Fong back pay,
    compensatory damages, and equitable relief. We conclude that the pattern-or-
    practice method of proving liability was not available to plaintiffs in this private,
    nonclass action and so REVERSE as to the submission of this theory of liability
    to the jury. We also REVERSE with respect to the district court’s determination
    that pursuant to the plaintiffs’ disparate impact theory, the “continuing
    violation” doctrine permitted the award of damages and equitable relief in
    connection with conduct predating the statute of limitations. We therefore
    VACATE the back pay awards to Eng, Lew, Stanley Chin, and Fong; VACATE the
    jury’s compensatory damage awards with respect to Eng, Yum, Lew, Lim,
    Martinez, Stanley Chin, and Fong; VACATE the retroactive promotion of Lew;
    VACATE the salary and pension adjustments for Lew, Stanley Chin, and Fong;
    and REMAND to the district court for a new trial on damages as to these plaintiffs
    and for reconsideration of the equitable relief afforded to them to the extent such
    relief was premised on failures to promote occurring outside the statute of
    limitations. With respect to all other issues raised by the parties on appeal, we
    AFFIRM.
    KAREN R. KING (Susanna M. Buergel, on the
    briefs), Paul, Weiss, Rifkind, Wharton & Garrison
    LLP, New York, New York, for Plaintiffs-
    Appellees–Cross-Appellants and Plaintiffs-
    Appellees.
    KATHLEEN GILL MILLER (Milton H. Pachter &
    James M. Begley, on the briefs), Port Authority of
    New York and New Jersey, New York, New York,
    for Defendant-Appellant–Cross-Appellee.
    LIVINGSTON, Circuit Judge:
    Plaintiffs-appellees, eleven Asian Americans currently or formerly
    employed as police officers by the Port Authority of New York and New Jersey
    (“Port Authority”), sued the Port Authority under Title VII of the Civil Rights
    Act of 1964, 42 U.S.C. § 2000e et seq., alleging that they were passed over for
    promotions because of their race. The plaintiffs asserted three theories of
    liability for discrimination: individual disparate treatment, pattern-or-practice
    disparate treatment, and disparate impact. After a nine-day trial, a unanimous
    2
    jury found the Port Authority liable for discrimination against seven of the
    plaintiffs under all three theories and awarded back pay and compensatory
    damages to each of those seven plaintiffs. The district court (Miriam Goldman
    Cedarbaum, Judge) also granted equitable relief to certain of the prevailing
    plaintiffs in the form of retroactive promotions, seniority benefits, and salary
    and pension adjustments corresponding with the hypothetical promotion dates
    that the jury apparently selected as a basis for calculating these plaintiffs’ back
    pay awards.
    On appeal, the Port Authority argues: (1) that evidence predating the
    onset of the statute of limitations should not have been admitted; (2) that the
    evidence was insufficient to support the jury’s verdict with respect to each of the
    plaintiffs’ theories; and (3) that the damages and equitable relief were premised
    on time-barred claims and were otherwise excessive.           With regard to the
    plaintiffs’ individual disparate treatment allegations, we hold that the district
    court properly admitted background evidence predating the onset of the
    limitations period and that there was sufficient evidence for a reasonable juror
    to conclude that the Port Authority discriminated against the seven prevailing
    plaintiffs within the limitations period. The district court erred, however, in: (1)
    submitting the pattern-or-practice disparate treatment theory to the jury in this
    private, nonclass action; and (2) concluding that the “continuing violation”
    3
    doctrine applied to the plaintiffs’ disparate impact theory so that the jury could
    award back pay and compensatory damages for harms predating the onset of the
    statute of limitations. We therefore vacate the back pay for four of the plaintiffs,
    whose awards correspond with hypothetical promotion dates beyond the
    limitations period, as well as the injunctive relief for three of the same plaintiffs,
    and we also vacate the award of compensatory damages for all seven prevailing
    plaintiffs. We remand for a new trial on damages as to all seven prevailing
    plaintiffs and for reconsideration of equitable relief to the extent such relief was
    premised on failures to promote occurring outside the limitations period.
    The four plaintiffs who did not prevail at trial cross-appeal, arguing that
    the district court erred by excluding expert testimony from an industrial
    psychologist. One of these plaintiffs, cross-appellant Howard Chin, further
    argues that the district court erred in denying the plaintiffs’ motion for sanctions
    in the form of an adverse inference instruction due to the Port Authority’s
    destruction of promotion records. Finding no abuse of discretion in the district
    court’s determinations as to these matters, we affirm.
    BACKGROUND
    The Port Authority is a bi-state transportation agency whose facilities are
    policed by its Public Safety Department. The eleven plaintiffs-appellees in this
    case are Asian Americans who were employed by that department as police
    4
    officers. Christian Eng was hired in 1977, David Lim in 1980, Richard Wong in
    1983, Milton Fong in 1985, Howard Chin and Alan Lew in 1987, Stanley Chin
    in 1988, George Martinez and Nicholas Yum in 1993, and Michael Chung and
    Sanrit Booncome in 1999. All of the plaintiffs were members of the Port
    Authority Police Asian Jade Society of New York & New Jersey Inc. (“Asian Jade
    Society”), a nonprofit organization comprised of Port Authority police officers of
    Asian or Pacific Islander origin, whose stated goal is to “promot[e]
    understanding, friendship and cooperation among members of the Port
    Authority police department.”
    I. The Port Authority Police Department’s Promotion Process
    During the period relevant to this case, entry-level police officers in the
    Port Authority’s police department could be promoted to the rank of Sergeant,
    the first level in a hierarchy of supervisory positions (followed by Lieutenant,
    Captain, Inspector, Chief, and finally Superintendent of Police). To become
    eligible for promotion to Sergeant, a police officer was required (among other
    requirements) to pass an examination, which would place him on an “eligibility
    list” for a period of time. When such a list expired, the officer would have to pass
    the examination again to be placed on the new list. Three lists were in effect
    during the period relevant to this case: the 1996 List, the 1999 List, and the
    5
    2002 List.1 These lists were “horizontal,” which meant that the lists did not rank
    the officers, but merely established eligibility for promotion.
    Each Port Authority facility’s commanding officer (generally a Captain)
    was periodically asked to recommend eligible officers for promotion, at their
    discretion. The Port Authority did not dictate any criteria for recommendation.
    Moreover, commanding officers were free to make recommendation decisions
    themselves, solicit input from the police officers’ direct supervisors (generally
    Sergeants and Lieutenants), or delegate the responsibility entirely to the direct
    supervisors. A promotion folder was prepared for each recommended officer,
    which included a performance evaluation by a supervisor, a photograph of the
    officer, and his record of absences, commendations, awards, and disciplinary
    history.
    Officers recommended in this way were typically considered by the Chiefs’
    Board, in which the Chiefs would collectively decide which officers to recommend
    to the Superintendent. The Chiefs’ Board did not operate under any written
    1
    The 1996 List was in effect from August 1996 through August 1999, and
    included 178 officers, 7 of whom were Asian. Twenty-three officers were promoted
    from the 1996 List, none of whom was Asian. The 1999 List was in effect from August
    1999 through August 2002, and included 220 officers, 10 of whom were Asian. Fifty-
    five officers were promoted from the 1999 List, 2 of whom were Asian (both of whom
    were promoted in December 2001). The 2002 List was in effect from August 2002
    through the date the complaint was filed (April 15, 2005), and included 352 officers, 16
    of whom were Asian. As of April 15, 2005, when the complaint in this case was filed,
    45 officers had been promoted from the 2002 List, 1 of whom was Asian.
    6
    guidelines, and from 1996 through September 2001, took no minutes or notes.
    Each Chief would vote regarding each recommended officer, and any officer who
    received a majority of votes from the Chiefs’ Board would then be recommended
    to the Superintendent. This step in the process was not always necessary to
    promotion, however; for example, Acting Superintendent Joseph Morris did not
    use the Chiefs’ Board at all during his tenure from September 2001 through
    April 2002.
    The ultimate decision to promote an officer to Sergeant belonged solely to
    the Superintendent. In fact, the Superintendent occasionally promoted officers
    whom the Chiefs’ Board had declined to recommend ahead of those
    recommended by the Board.
    As of January 31, 2001, no Asian American had ever been promoted to
    Sergeant.
    II. Procedural History
    On January 31, 2001, the Asian Jade Society filed a charge of
    discrimination with the Equal Employment Opportunity Commission (“EEOC”)
    on behalf of its members, claiming that the Port Authority had denied Asian
    American police officers promotions because of their race. On August 29, 2003,
    the EEOC determined that there was reasonable cause to believe the Port
    Authority had violated Title VII, and on January 25, 2005, the Department of
    7
    Justice issued a right-to-sue letter to the Asian Jade Society.2 The eleven
    plaintiffs in this case filed suit on April 15, 2005, alleging that the Port
    Authority had discriminated against Asian Americans in making promotions to
    Sergeant.
    During discovery, the plaintiffs learned that the Port Authority had not
    implemented a document retention policy and that, as a result, at least thirty-
    two promotion folders used to make promotion decisions between August 1999
    and August 2002 had been destroyed. The plaintiffs moved for sanctions,
    seeking an adverse inference against the Port Authority for spoliation. The
    district court denied the motion, reasoning that the plaintiffs had ample
    alternative evidence regarding the relative qualifications of the plaintiffs and
    that the Port Authority’s destruction of the documents was “negligent, but not
    grossly so.” Port Auth. Police Asian Jade Soc’y of N.Y. & N.J. Inc. v. Port Auth.
    of N.Y. & N.J. (Port Auth. I), 
    601 F. Supp. 2d 566
    , 570 (S.D.N.Y. 2009).
    On the eve of trial, the district court granted the Port Authority’s motion
    to exclude testimony from one of the plaintiffs’ expert witnesses: Dr. Kathleen
    Lundquist, an industrial psychologist who specializes in analyzing the reliability
    2
    Ordinarily, a “right to sue” letter must be issued by the EEOC. However,
    where the respondent to a Title VII discrimination charge is a governmental agency
    and the EEOC has not dismissed the charge, the Attorney General is responsible for
    issuing the right-to-sue letter. See 
    29 C.F.R. § 1601.28
    (d).
    8
    and validity of employee-selection procedures. Dr. Lundquist had prepared a
    report opining on the effectiveness of the Port Authority’s promotion process, on
    whether it included safeguards to prevent bias and discrimination, and on the
    comparative qualifications of the plaintiffs relative to the qualifications of the
    officers who had been promoted. Citing Rule 702 of the Federal Rules of
    Evidence,3 the district court concluded that Dr. Lundquist’s testimony “would
    not assist the trier of fact” and was therefore excluded.
    The nine-day trial began on March 11, 2009, and included testimony from
    twenty-two fact witnesses and four expert witnesses. All eleven of the plaintiffs
    testified regarding their personal backgrounds, education, experiences as police
    officers, attendance and disciplinary records, awards and commendations, and
    performance evaluations.          Six Chiefs, one former Superintendent, the
    Superintendent at the time of trial, and three other Port Authority managers
    testified regarding the Port Authority’s promotion procedure. Each side also
    presented a statistical expert and a damages expert.
    3
    Federal Rule of Evidence 702 provides:
    A witness who is qualified as an expert by knowledge, skill, experience,
    training, or education may testify in the form of an opinion or otherwise
    if: (a) the expert’s scientific, technical, or other specialized knowledge will
    help the trier of fact to understand the evidence or to determine a fact in
    issue; (b) the testimony is based on sufficient facts or data; (c) the
    testimony is the product of reliable principles and methods; and (d) the
    expert has reliably applied the principles and methods to the facts of the
    case.
    9
    Most relevant to this appeal, the plaintiffs’ statistical expert, Dr.
    Christopher Cavanagh, presented two analyses that, in his view, demonstrated
    a high probability that Asian Americans had been discriminated against in the
    Port Authority’s promotion process. In his first study, Cavanagh compared the
    percentage of white police officers who held a supervisory position (out of all
    white police officers) with the percentage of Asian Americans who held a
    supervisory position (out of all Asian American police officers) from 1996 through
    2004. For each year, he used a Fisher Exact Test to calculate the likelihood that
    the difference between Asian American and white representation at the
    supervisory level (as compared to the representation of these groups at the non-
    supervisory level) was due to chance.4 From 1996 through 2000, the likelihood
    that the disparities were due to chance was about two percent or less; from 2001
    through 2004, the likelihoods that the disparities were due to chance were
    between about five and eleven percent.
    Cavanagh’s second analysis compared the promotion rate for whites who
    were on the eligible lists to the promotion rate for Asian Americans who were on
    the eligible lists over the period from August 1996 through January 31, 2001
    (the date on which the EEOC charge was filed). Of the 259 white officers on the
    4
    The Fisher Exact Test is a statistical significance test named for its author,
    R.A. Fisher. See generally R.A. Fisher, On the Interpretation of [Chi-Squared] from
    Contingency Tables, and the Calculation of P, 85 J. Royal Stat. Soc’y 87 (1922).
    10
    lists over this period, 36 were promoted; of the 12 Asian Americans on the lists,
    none were promoted. Using the Fisher Exact Test, Cavanagh calculated that the
    likelihood this disparity would occur due to chance was about thirteen percent.
    The district court instructed the jury regarding three theories of
    discrimination: (1) disparate impact; (2) pattern-or-practice disparate treatment;
    and (3) individual disparate treatment.           After two-and-a-half days of
    deliberation, the jury returned a unanimous verdict, finding that seven of the
    eleven plaintiffs—Christian Eng, Milton Fong, Alan Lew, Stanley Chin, Nicholas
    Yum, George Martinez, and David Lim—had proven all three of their theories
    of liability, and awarding more than $1.6 million in total to those seven
    plaintiffs. The back pay awards corresponded precisely to certain hypothetical
    promotion dates suggested by the plaintiffs’ damages expert.5
    On the plaintiffs’ motion, the district court also granted the seven
    prevailing plaintiffs equitable relief, including salary adjustments for pension
    purposes for Milton Fong, Stanley Chin, Alan Lew, George Martinez, Nicholas
    5
    Four plaintiffs’ back pay awards corresponded to hypothetical promotion dates
    of October 31, 1999: Christian Eng was awarded $35,445 in back pay and $250,000 in
    compensatory damages; Milton Fong was awarded $83,924 in back pay and $100,000
    in compensatory damages; Alan Lew was awarded $189,859 in back pay and $75,000
    in compensatory damages; and Stanley Chin was awarded $116,636 in back pay and
    $100,000 in compensatory damages. Three plaintiffs’ back pay awards corresponded
    to hypothetical promotion dates of September 30, 2002: Nicholas Yum was awarded
    $141,663 in back pay and $15,000 in compensatory damages; George Martinez was
    awarded $145,861 in back pay and $15,000 in compensatory damages; and David Lim
    was awarded $119,234 in back pay and $250,000 in compensatory damages.
    11
    Yum, and David Lim, and retroactive promotions for Alan Lew, George
    Martinez, and Nicholas Yum. The hypothetical dates the district court used
    were October 31, 1999, for Fong, Chin, and Lew, and September 30, 2002, for
    Martinez, Yum, and Lim—corresponding with the hypothetical dates the jury
    apparently used as a basis for computing back pay. The court also ordered the
    Port Authority to take certain specific actions to prevent future violations.
    The Port Authority filed a motion pursuant to Rules 50 and 59 of the
    Federal Rules of Civil Procedure to set aside the jury’s verdict or, alternatively,
    for a new trial and for remittitur. The Port Authority argued that: (1) the
    district court improperly admitted evidence pertaining to events prior to the
    onset of the statute of limitations period; (2) the jury was improperly instructed
    to consider events outside the limitations period for purposes of establishing
    liability; (3) there was insufficient evidence to find the Port Authority liable
    under any of the plaintiffs’ three theories; (4) the jury instructions were
    erroneous and confusing with respect to the statute of limitations; and (5) the
    jury’s damages included time-barred claims and were otherwise excessive.
    The district court denied the Port Authority’s motion in its entirety. See
    Port Auth. Police Asian Jade Soc’y of N.Y. & N.J. Inc. v. Port Auth. of N.Y. &
    N.J. (Port Auth. II), 
    681 F. Supp. 2d 456
     (S.D.N.Y. 2010). As pertinent to this
    appeal, the district court first held that background evidence from beyond the
    12
    statute of limitations is admissible in support of a timely claim. See 
    id. at 462
    .
    Next, the court concluded that the plaintiffs’ individual disparate treatment
    claims were premised on “discrete acts” and thus that the Port Authority could
    be liable only for those acts within the statute of limitations. See id at 463. The
    court concluded that the plaintiffs’ disparate impact and pattern-or-practice
    disparate treatment theories of liability, however, were premised on the
    existence of an “ongoing discriminatory policy,” and thus were subject to the
    “continuing violations” doctrine, so that the plaintiffs could recover for untimely
    discrete acts so long as they were the product of a discriminatory policy that
    continued into the statute-of-limitations period. See 
    id.
     at 463–66. Third, the
    district court held that although Cavanagh’s statistical evidence did not reach
    the conventional five-percent level of statistical significance, see Smith v. Xerox
    Corp., 
    196 F.3d 358
    , 366 (2d Cir. 1999) (noting that statistical significance at the
    five-percent level is generally “sufficient to warrant an inference of
    discrimination”), the jury had before it other evidence of discrimination sufficient
    to find for the plaintiffs on each of the theories of liability. See Port Auth. II, 
    681 F. Supp. 2d at
    468–69. Finally, the district court declined to remit the jury’s
    compensatory damages awards because other judges had upheld similar awards
    and because the awards did not “shock the judicial conscience.” 
    Id. at 470
    .
    13
    The Port Authority appeals, and argues before this Court that it is entitled
    to a new trial with respect to the seven prevailing plaintiffs because: (1) evidence
    predating the onset of the limitations period should not have been admitted; (2)
    the evidence at trial was insufficient to support the jury’s verdict with respect
    to each of the plaintiffs’ theories; and (3) the damages and equitable relief are
    premised on time-barred claims and are otherwise excessive.
    The four plaintiffs who did not prevail at trial—Howard Chin, Richard
    Wong, Sanrit Booncome, and Michael Chung—cross-appeal, and argue here that
    they are entitled to a new trial because the district court erred by excluding
    Lundquist’s testimony. Howard Chin further argues that he is entitled to a new
    trial because the district court improperly denied the plaintiffs an adverse
    inference instruction despite the Port Authority’s destruction of promotion
    records.
    DISCUSSION
    The plaintiffs argue that they are entitled to damages for injuries that
    occurred before the onset of the statute of limitations period because the
    “continuing violations” doctrine applies to two of their three theories of
    liability—pattern-or-practice disparate treatment and disparate impact. We
    dispose of half of this argument at the outset of this opinion by holding that no
    such pattern-or-practice theory of liability is available to the private, non-class
    14
    plaintiffs in this case. We next consider and affirm the district court’s judgment
    with respect to the plaintiffs’ two remaining theories of liability—individual
    disparate treatment and disparate impact—by holding that background evidence
    from outside the limitations period was admissible and that the evidence
    presented at trial was sufficient to sustain the jury’s findings of liability on both
    theories. We then conclude, however, that the “continuing violations” doctrine
    does not apply to either theory in this case, and therefore vacate and remand for
    reconsideration of the damages and equitable relief granted by the district court
    to the prevailing plaintiffs whose awards correspond (or may correspond) to
    hypothetical promotion dates preceding the onset of the limitations period.
    Finally, we consider the plaintiffs’ cross-appeal, and hold that the district court
    did not abuse its discretion by excluding Lundquist’s testimony or by denying the
    plaintiffs an adverse inference instruction.
    “A motion for a new trial should be granted when, in the opinion of the
    district court, ‘the jury has reached a seriously erroneous result or . . . the verdict
    is a miscarriage of justice.’” Song v. Ives Labs., Inc., 
    957 F.2d 1041
    , 1047 (2d Cir.
    1992) (quoting and altering Smith v. Lightning Bolt Prods., Inc., 
    861 F.2d 363
    ,
    370 (2d Cir. 1988)). “The district court’s denial of a Rule 59 motion for a new
    trial is reviewed for abuse of discretion.” Manganiello v. City of New York, 
    612 F.3d 149
    , 165 (2d Cir. 2010). “A district court has abused its discretion if it has
    15
    (1) ‘based its ruling on an erroneous view of the law,’ (2) made ‘a clearly
    erroneous assessment of the evidence,’ or (3) ‘rendered a decision that cannot be
    located within the range of permissible decisions.’” 
    Id.
     (quoting Sims v. Blot, 
    534 F.3d 117
    , 132 (2d Cir. 2008)). We review the denial of a motion for judgment as
    a matter of law de novo. Lore v. City of Syracuse, 
    670 F.3d 127
    , 150 (2d Cir.
    2012). “[W]hether conducting review de novo or under a less sweeping standard,
    we must disregard all errors and defects . . . . if there is no likelihood that the
    error or defect affected the outcome of the case.” 
    Id.
     (internal quotation marks
    omitted).
    As a prerequisite to filing suit under Title VII, a private plaintiff must first
    file a timely charge with the EEOC. See 42 U.S.C. § 2000e-5(e)(1), (f)(1). Both
    parties agree that in this case, the plaintiffs’ charge was due “within one
    hundred and eighty days after the alleged unlawful employment practice
    occurred.” 42 U.S.C. § 2000e-5(e)(1). Accordingly, because the EEOC charge in
    this case was filed on January 31, 2001, only an unlawful employment practice
    that “occurred” after August 2, 2000, may give rise to liability.6
    6
    Although the district court and the parties appear to agree that 180 days prior
    to January 31, 2001 is August 3, 2000, by this Court’s calculation the correct date is
    August 4, 2000, which would mean that only an unlawful employment practice that
    occurred after August 3, 2000 may give rise to liability. But because the one-day
    difference is not material to this appeal, we refer to August 2, 2000, as the relevant
    date throughout this opinion. See Zipes v. Trans World Airlines, Inc., 
    455 U.S. 385
    ,
    393 (1982) (“[F]iling a timely charge of discrimination with the EEOC is not a
    jurisdictional prerequisite to suit in federal court, but a requirement that, like a
    16
    I. The Pattern-or-Practice Method of Proof
    As an initial matter, we address the question whether the method of proof
    described in International Brotherhood of Teamsters v. United States, 
    431 U.S. 324
     (1997), and known as the “Teamsters” or “pattern-or-practice” method, was
    available to the nonclass private plaintiffs in this case.7 We conclude that it was
    not and that the judgment as to pattern or practice must for this reason be
    reversed.    We emphasize, however, that evidence that the Port Authority
    engaged in a pattern or practice of discrimination—in the ordinary sense of those
    words, rather than in the technical sense describing a theory of liability for
    discrimination—remains relevant in assessing whether the plaintiffs proved
    discrimination using the individual disparate treatment and disparate impact
    methods of proof.
    The phrase “pattern or practice” appears only once in Title VII—in a
    section that authorizes the government to pursue injunctive relief against an
    employer “engaged in a pattern or practice of resistance to the full enjoyment of
    any of the rights secured by” the statute. 42 U.S.C. § 2000e-6. Notwithstanding
    statute of limitations, is subject to waiver, estoppel, and equitable tolling.”).
    7
    The parties did not address this issue before the district court and do not raise
    it on appeal. Nonetheless, we are not bound by parties’ effective stipulations on
    questions of law, see U.S. Nat’l Bank of Or. v. Indep. Ins. Agents of Am., Inc., 
    508 U.S. 439
    , 446–48 (1993), and in this case we exercise our discretion to consider this issue
    in order to provide guidance in a complicated area.
    17
    the Supreme Court’s recognition in Teamsters that this language “was not
    intended as a term of art, and the words reflect only their usual meaning,”
    Teamsters, 431 U.S. at 336 n.16, the phrase is often used in a technical sense to
    refer either to this unique form of liability available in government actions under
    § 2000e-6, see, e.g., EEOC v. Shell Oil Co., 
    466 U.S. 54
    , 67–68 n.19, 70, 80 (1984),
    or to the burden-shifting framework set out in Teamsters and available both to
    the government in § 2000e-6 litigation and to class-action plaintiffs in private
    actions alleging discrimination, see, e.g., Wal-Mart Stores, Inc. v. Dukes, 
    131 S. Ct. 2541
    , 2552 n.7 (2011).
    We begin with § 2000e-6. The building blocks of liability pursuant to this
    provision—which provides for prospective injunctive relief where the
    government establishes that an employer is engaged in a “pattern or practice of
    resistance to the full enjoyment” of rights secured by Title VII—differ from those
    that provide the foundation for typical, private-party Title VII litigation. To
    establish an employer’s liability for discrimination in violation of Title VII, a
    private plaintiff ordinarily must show that an employer took an adverse
    employment action against him or her because of his or her race, or on account
    of another protected ground. See McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
    , 802 (1973); Aulicino v. N.Y. City Dep’t of Homeless Servs., 
    580 F.3d 73
    , 80
    (2d Cir. 2009). In § 2000e-6 litigation, by contrast, the government need not
    18
    demonstrate specific losses to specific individuals to establish that injunctive
    relief is appropriate.    The government must “prove more than the mere
    occurrence of isolated or ‘accidental’ or sporadic discriminatory acts”: it must
    prove that unlawful discrimination “was the company’s standard operating
    procedure.” Teamsters, 431 U.S. at 336. Once established, however, “a court’s
    finding of a pattern or practice justifies an award of prospective relief” even
    absent proof of losses to specific individuals. Id. at 361.
    The parties here use the term “pattern or practice” to refer not to an
    element of a § 2000e-6 claim, but to the method of proof that the Supreme Court
    endorsed in Teamsters for the adjudication of such claims. This method of proof,
    however, originated in the class action context, in Franks v. Bowman
    Transportation Co., 
    424 U.S. 747
     (1976).         The Supreme Court in Franks
    determined that once the private plaintiffs in the class action there “carried their
    burden of demonstrating the existence of a discriminatory hiring pattern and
    practice by the [employer] . . . , the burden [was] upon [the employer] to prove
    that individuals who reappl[ied] were not in fact victims of previous hiring
    discrimination.” 
    Id. at 772
    . The Court in Franks used the phrase “pattern and
    practice” to refer to the common question of fact (whether the employer had
    engaged in a practice of discriminatory hiring) to be litigated by class plaintiffs,
    and apparently viewed its holding as no more than an application of McDonnell
    19
    Douglas’ burden-shifting framework in the class-action context. See Franks, 
    424 U.S. at
    773 (citing McDonnell Douglas, 
    411 U.S. 792
    ).
    The Teamsters Court thereafter determined that the Franks burden-
    shifting framework for certain class actions should also apply to government
    “pattern or practice” suits brought under § 2000e-6:
    Although not all class actions will necessarily follow the
    Franks model, the nature of a [§ 2000e-6] pattern-or-practice suit
    brings it squarely within our holding in Franks. The plaintiff in a
    pattern-or-practice action is the Government, and its initial burden
    is to demonstrate that unlawful discrimination has been a regular
    procedure or policy followed by an employer or group of employers.
    At the initial, “liability” stage of a pattern-or-practice suit the
    Government is not required to offer evidence that each person for
    whom it will ultimately seek relief was a victim of the employer’s
    discriminatory policy. . . .
    ....
    When the Government seeks individual relief for the victims
    of the discriminatory practice, a district court must usually conduct
    additional proceedings after the liability phase of the trial to
    determine the scope of individual relief. The petitioners’ contention
    in this case is that if the Government has not, in the course of
    proving a pattern or practice, already brought forth specific evidence
    that each individual was discriminatorily denied an employment
    opportunity, it must carry that burden at the second, “remedial”
    stage of trial. That basic contention was rejected in the Franks
    case. . . .
    The proof of the pattern or practice supports an inference that
    any particular employment decision, during the period in which the
    discriminatory policy was in force, was made in pursuit of that
    policy. The Government need only show that an alleged individual
    discriminatee unsuccessfully applied for a job and therefore was a
    potential victim of the proved discrimination. As in Franks, the
    burden then rests on the employer to demonstrate that the
    20
    individual applicant was denied an employment opportunity for
    lawful reasons.
    Teamsters, 431 U.S. at 360–62 (internal citation and footnotes omitted). Since
    Teamsters, this burden-shifting framework has been known as the “Teamsters
    method of proof” or the “pattern-or-practice method.” See, e.g., Celestine v.
    Petroleos de Venezuella SA, 
    266 F.3d 343
    , 355 (5th Cir. 2001) (“A pattern or
    practice case is not a separate and free-standing cause of action . . . , but is really
    merely another method by which disparate treatment can be shown.” (internal
    quotation marks omitted)); Lowery v. Circuit City Stores, Inc., 
    158 F.3d 742
    , 760
    (4th Cir. 1998) (“The courts of appeals have . . . permitted pattern or practice
    class action suits using the Teamsters method of proof.”), vacated on other
    grounds, 
    527 U.S. 1031
     (1999).8 In sum, unlike in a typical individual disparate
    treatment suit, “a plaintiff’s burden under the pattern-or-practice method
    requires the plaintiff to prove only the existence of a discriminatory policy rather
    than all elements of a prima facie case of discrimination”—but “under the
    pattern-or-practice method, only prospective relief [is] available, unless the
    8
    Although the Teamsters framework is not a freestanding cause of action,
    courts—including the Supreme Court—sometimes loosely refer to the Teamsters
    method of proof as a “pattern-or-practice claim.” See, e.g., Nat’l R.R. Passenger Corp.
    v. Morgan, 
    536 U.S. 101
    , 115 n.9 (2002) (“We have no occasion here to consider
    the timely filing question with respect to ‘pattern-or-practice’ claims brought by
    private litigants as none are at issue here.”).
    21
    plaintiffs offer[] additional proof.” Semsroth v. City of Wichita, 304 F. App’x 707,
    716 (10th Cir. 2008) (describing the reasoning in Lowery, 
    158 F.3d at 761
    ).
    Permitting private plaintiffs to use the pattern-or-practice method of proof
    outside the class action context would require us to extend this method beyond
    its current application. This we decline to do. Such an extension would allow
    nonclass private plaintiffs who have shown a pattern or practice of
    discrimination (but have not made out a disparate impact claim) to shift the
    burden to employers to prove that they did not discriminate against a particular
    individual. But this would conflict with the Supreme Court’s oft-repeated
    holding in the context of disparate-treatment, private nonclass litigation that
    “[t]he ultimate burden of pursuading the trier of fact that the defendant
    intentionally discriminated against the plaintiff remains at all times with the
    plaintiff.” Tex. Dep’t of Cmty. Affairs v. Burdine, 
    450 U.S. 248
    , 253 (1981). To
    be sure, proof that an employer engaged in a pattern or practice of
    discrimination may be of substantial help in demonstrating an employer’s
    liability in the individual case. But such proof cannot relieve the plaintiff of the
    need to establish each element of his or her claim.
    We note that the district court in this case did not instruct the jury that
    a finding of a pattern or practice of discrimination shifted the burden of
    persuasion. Rather, the verdict sheet instructed the jury that each individual
    22
    plaintiff was required to prove by a preponderance of the evidence that he was
    discriminated against as part of the pattern or practice. This instruction only
    underscores, however, why there was no need for the jury to make a specific
    finding regarding a pattern or practice of discrimination in this private, nonclass
    suit, as opposed to determining directly whether each individual plaintiff had
    been intentionally discriminated against.       Where, as here, there are only
    individual, nonclass disparate-treatment claims, a district court need not and
    should not instruct the jury that a common pattern of discrimination is an
    element of liability.
    For these reasons, all of our sister circuits to consider the question have
    held that the pattern-or-practice method of proof is not available to private,
    nonclass plaintiffs. See Semsroth v. City of Wichita, 304 F. App’x 707, 715 (10th
    Cir. 2008); Davis v. Coca-Cola Bottling Co. Consol., 
    516 F.3d 955
    , 967–69 (11th
    Cir. 2008); Bacon v. Honda of Am. Mfg., 
    370 F.3d 565
    , 575 (6th Cir. 2004);
    Celestine v. Petroleos de Venezuella SA, 
    266 F.3d 343
    , 355–56 (5th Cir. 2001);
    Gilty v. Vill. of Oak Park, 
    919 F.2d 1247
    , 1252 (7th Cir. 1990); Lowery v. Circuit
    City Stores, Inc., 
    158 F.3d 742
    , 761 (4th Cir. 1998), vacated on other grounds, 
    527 U.S. 1031
     (1999); see also Schuler v. PricewaterhouseCoopers, LLP, 
    739 F. Supp. 2d 1
    , 6 n.2 (D.D.C. 2010) (“Courts in every other Circuit that has touched on this
    issue have indicated that an individual plaintiff cannot maintain a pattern and
    23
    practice claim.”) (collecting cases); 1 Lex Larson et al., Employment
    Discrimination § 8.01[3], at 8-13 (2d ed. 2011) (“[C]ourts have refused to permit
    individuals to use the pattern or practice proof structure for claims of individual
    discrimination . . . .”). We have suggested as much, albeit in dicta. See Brown
    v. Coach Stores, Inc., 
    163 F.3d 706
    , 711 (2d Cir. 1998).
    For the foregoing reasons, we now hold that the pattern-or-practice
    method of proof is not available to nonclass, private plaintiffs in cases such as
    the one before us. Evidence of an employer’s general practice of discrimination
    may be highly relevant to an individual disparate treatment or to a disparate
    impact claim. Outside the class context, however, private plaintiffs may not
    invoke the Teamsters method of proof as an independent and distinct method of
    establishing liability. The district court erred in submitting this method of proof
    to the jury as a basis on which it could hold the Port Authority liable.
    II. Admissibility and Sufficiency of Evidence
    A.    Admissibility of Evidence from Outside the Limitations Period
    Turning to the plaintiffs’ individual disparate treatment and disparate
    impact claims, the Port Authority argues that the district court improperly
    admitted evidence of events prior to August 2, 2000, for purposes of liability and
    damages. It is well established, however, that so long as at least “one alleged
    adverse employment action . . . occurred within the applicable filing period[,] . . .
    24
    evidence of an earlier alleged retaliatory act may constitute relevant
    ‘background evidence in support of [that] timely claim.’” Jute v. Hamilton
    Sundstrand Corp., 
    420 F.3d 166
    , 176 (2d Cir. 2005) (quoting and altering Nat’l
    R.R. Passenger Corp. v. Morgan, 
    536 U.S. 101
    , 113 (2002)). Such background
    evidence “may be considered to assess liability on the timely alleged act.” 
    Id. at 177
    ; see also Petrosino v. Bell Atl., 
    385 F.3d 210
    , 220 (2d Cir. 2004) (applying this
    rule in the failure-to-promote context). In particular, we have noted that
    statistical studies may include data from outside the statute of limitations to
    prove timely discriminatory acts. See Rossini v. Ogilvy & Mather, Inc., 
    798 F.2d 590
    , 604 n.5 (2d Cir. 1986).9 Title VII’s statute of limitations therefore did not
    prohibit admission of the plaintiffs’ evidence of discrimination before August 2,
    2000.
    B.      Sufficiency of the Evidence
    The Port Authority next argues that the plaintiffs’ evidence of individual
    disparate treatment and disparate impact was insufficient as a matter of law,
    and that the district court therefore abused its discretion in declining to set aside
    the verdict. “In reviewing the sufficiency of the evidence in support of a jury’s
    9
    To be clear, the district court retains discretion to determine whether evidence
    predating the onset of the statute of limitations period should be admitted under any
    applicable rule of evidence. See Jute, 
    420 F.3d at
    177 n.7; Malarkey v. Texaco, Inc., 
    983 F.2d 1204
    , 1211 (2d Cir. 1993).
    25
    verdict, we examine the evidence in the light most favorable to the party in
    whose favor the jury decided, drawing all reasonable inferences in the winning
    party’s favor.” Gronowski v. Spencer, 
    424 F.3d 285
    , 291 (2d Cir. 2005). We will
    overturn the verdict here “only if there is ‘such a complete absence of evidence
    supporting the verdict that the jury’s findings could only have been the result of
    sheer surmise and conjecture, or such an overwhelming amount of evidence in
    favor of the [Port Authority] that reasonable and fair minded men could not
    arrive at a verdict against [the Port Authority].’” 
    Id. at 292
     (quoting LeBlanc-
    Sternberg v. Fletcher, 
    67 F.3d 412
    , 429 (2d Cir. 1995)) (some internal quotation
    marks omitted).
    With respect to a Title VII individual disparate treatment claim,
    “[w]hether judgment as a matter of law is appropriate in any particular case will
    depend on a number of factors. Those include the strength of the plaintiff’s
    prima facie case, the probative value of the proof that the employer’s explanation
    is false, and any other evidence that supports the employer’s case and that
    properly may be considered on a motion for judgment as a matter of law.” Reeves
    v. Sanderson Plumbing Prods., Inc., 
    530 U.S. 133
    , 148–49 (2000). A plaintiff
    establishes a prima facie case by showing “(1) that he belonged to a protected
    class; (2) that he was qualified for the position he held; (3) that he suffered an
    adverse employment action; and (4) that the adverse employment action
    26
    occurred under circumstances giving rise to an inference of discriminatory
    intent.” Feingold v. New York, 
    366 F.3d 138
    , 152 (2d Cir. 2004). An employer
    may then rebut this prima facie case by offering a legitimate, nondiscriminatory
    business reason for its conduct. See 
    id.
     A plaintiff ultimately prevails if he
    proves that the defendant’s employment decision was based in whole or in part
    on intentional discrimination. See 
    id.
    To prevail under the disparate impact theory of liability, a plaintiff must
    show that the employer “uses a particular employment practice that causes a
    disparate impact on the basis of race, color, religion, sex, or national origin.” 42
    U.S.C. § 2000e-2(k)(1)(A)(i). This requires a plaintiff to (1) “identify a specific
    employment practice” or policy, Malave v. Potter, 
    320 F.3d 321
    , 326 (2d Cir.
    2003); “(2) demonstrate that a disparity exists; and (3) establish a causal
    relationship between the two.” Robinson v. Metro-North Commuter R.R. Co., 
    267 F.3d 147
    , 160 (2d Cir. 2001). “The statistics must reveal that the disparity is
    substantial or significant,” and “must be of a kind and degree sufficient to reveal
    a causal relationship between the challenged practice and the disparity.” 
    Id.
    (internal quotation marks omitted). To rebut a plaintiff’s statistics, a defendant
    may introduce evidence showing that “either no statistically significant disparity
    in fact exists or the challenged practice did not cause the disparity.” 
    Id. at 161
    .
    27
    If the trier of fact determines that the plaintiffs have established a
    disparate impact violation of Title VII, each person seeking individual relief such
    as back pay and compensatory damages “need only show that he or she suffered
    an adverse employment decision ‘and therefore was a potential victim of the
    proved discrimination.’” 
    Id. at 159
     (quoting Teamsters, 431 U.S. at 362)
    (alteration omitted); see id. at 161–62. After such a showing, the employer bears
    the burden of persuading the trier of fact that its decision was made for lawful
    reasons; otherwise, the employee is entitled to individualized relief, which may
    include back pay, front pay, and compensatory damages for “emotional pain,
    suffering, inconvenience, mental anguish, loss of enjoyment of life, [or] other
    nonpecuniary losses.” 42 U.S.C. § 1981a(b)(3); see Robinson, 
    267 F.3d at
    159–60.
    The Port Authority challenges three aspects of the plaintiffs’ evidence.
    First, the Port Authority argues that the plaintiffs’ statistical evidence was
    fatally flawed and that without it the plaintiffs lack sufficient evidence to prove
    a disparate impact. Second, the Port Authority contends that the plaintiffs did
    not show that the multiple-step promotion process was “not capable of
    separation for analysis,” 42 U.S.C. § 2000e-2(k)(1)(B)(i), and therefore the
    plaintiffs were required but failed to identify the specific promotion practice that
    caused a disparate impact.       Third, the Port Authority contends that the
    plaintiffs’ anecdotal evidence of intentional discrimination consists of nothing
    28
    more than personal affronts outside of the promotion context, and therefore that
    the plaintiffs’ individual disparate treatment claims must fail for lack of
    evidence that any discrimination was intentional.
    We disagree with all three of the Port Authority’s arguments and hold that
    the plaintiffs introduced sufficient evidence to support the jury’s verdict as to
    plaintiffs’ disparate impact and individual disparate treatment claims.
    1.    Statistical Evidence
    The Port Authority argues first that the statistical evidence presented by
    Dr. Cavanagh, the plaintiffs’ expert witness, was insufficient to prove their
    disparate impact claim because Dr. Cavanagh’s analyses impermissibly (1) relied
    on data predating the onset of the statute of limitations, (2) did not focus on the
    relevant pool of candidates eligible for promotion, and (3) failed to establish
    statistical significance. We address each of these contentions in turn.
    First, the Port Authority is incorrect in asserting that Dr. Cavanagh’s
    statistics were flawed because they relied in part on data predating the onset of
    the statute of limitations period. In Bazemore v. Friday, 
    478 U.S. 385
     (1986), the
    Supreme Court stated that evidence predating the 1972 enactment of Title VII
    was not only admissible but, “to the extent that proof is required to establish
    discrimination with respect to salary disparities created after 1972, evidence of
    pre-Act discrimination is quite probative.” 
    Id.
     at 402 n.13 (internal citation
    29
    omitted).   Moreover, we have made clear that a district court errs by
    “downgrading” statistical studies on the ground that they “relied in part on
    pre–statute of limitations data.” Rossini, 
    798 F.2d at
    604 n.5.
    The Port Authority next argues that Dr. Cavanagh’s year-end demographic
    statistics were not sufficient to show a disparate impact because they simply
    compared the percentage of Asian Americans in supervisory positions with the
    percentage of Asian American officers, rather than looking to the relevant pool
    for promotion (i.e., the percentage of Asian Americans on the eligible lists). On
    this point, we agree.
    As we have said, “plaintiffs must identify the correct population for
    analysis. In the typical disparate impact case the proper population for analysis
    is the applicant pool or the eligible labor pool.” Smith v. Xerox Corp., 
    196 F.3d 358
    , 368 (2d Cir. 1999) (emphasis added), overruled on other grounds by
    Meacham v. Knolls Atomic Power Lab., 
    461 F.3d 134
    , 140 (2d Cir. 2006). “In the
    context of promotions, we have held that the appropriate comparison is
    customarily between the [racial] composition of candidates seeking to be
    promoted and the [racial] composition of those actually promoted,” at least so
    long as the relevant data are available. Malave, 
    320 F.3d at 326
     (emphasis
    added). The plaintiffs in this case did not allege that the eligibility test was
    discriminatory; rather, they alleged that discrimination entered the process at
    30
    the discretionary stage after the eligible lists had already been drawn up. The
    relevant population for analysis, then, includes only those officers on the eligible
    lists. Dr. Cavanagh’s year-end demographic analyses include all officers, and
    therefore do not meet the statistical standards prescribed by law.
    Putting aside these demographic analyses, then, we are left with Dr.
    Cavanagh’s statistical analysis comparing the percentage of Asian Americans
    on the eligibility lists with the percentage of Asian Americans promoted from
    1996 to January 31, 2001 (the date that the EEOC complaint was filed). None
    of the 12 Asians on the eligible lists were promoted during this period, in
    contrast to 36 out of 259 whites; according to Dr. Cavanagh’s calculations, this
    difference would occur due to chance “a bit under 13 percent” of the time. The
    Port Authority argues that a due-to-chance figure of 13 percent is not
    statistically significant because “it is generally accepted that statistical
    significance is at a 5% level or less.”
    It is true that “we have . . . looked to whether the plaintiff can show a
    statistically significant disparity of two standard deviations,” which (in a normal
    distribution) requires statistical significance at approximately the 5-percent
    level. Xerox, 
    196 F.3d at 365
    . However, we have also said that “[t]here is no
    minimum statistical threshold requiring a mandatory finding that a plaintiff has
    demonstrated a violation of Title VII.         Courts should take a ‘case-by-case
    31
    approach’ in judging the significance or substantiality of disparities, one that
    considers not only statistics but also all the surrounding facts and
    circumstances.” Waisome v. Port Auth. of N.Y. & N.J., 
    948 F.2d 1370
    , 1376 (2d
    Cir. 1991) (quoting Ottaviani v. State Univ. of N.Y. at New Paltz, 
    875 F.2d 365
    ,
    372–73 (2d Cir. 1991)); see also Watson v. Fort Worth Bank & Trust, 
    487 U.S. 977
    , 995 n.3 (1988) (“[W]e have not suggested that any particular number of
    ‘standard deviations’ can determine whether a plaintiff has made out a prima
    facie case in the complex area of employment discrimination. . . .”); accord Xerox,
    
    196 F.3d at 366
    .
    In many (perhaps most) cases, if there is a 13-percent likelihood that a
    disparity resulted from chance, it will not qualify as statistically significant. In
    this case, the plaintiffs offered other evidence that reasonable jurors could have
    relied upon to find that an 87-percent likelihood that the disparity was not due
    to chance qualified as significant. First, no Asian Americans were promoted
    during the relevant period; requiring a statistical showing of 95-percent
    confidence would make it mathematically impossible to rely upon statistics in
    a case like this one, in which the relevant population included so few Asian
    Americans. See Waisome, 
    948 F.2d at 1379
     (“[T]he lack of statistical significance
    in the ultimate promotion reflects only the small sample size.”). Second, as the
    Port Authority acknowledges, the plaintiffs presented a substantial amount of
    32
    evidence that reasonable jurors could have relied on to conclude that the
    plaintiffs were more qualified than some of the white officers who were
    promoted, including comparing length of service, attendance records, and
    disciplinary histories. In the context of this case, it would not be unreasonable
    for a juror to find Dr. Cavanagh’s statistics significant despite only being
    significant at the 13-percent level.
    Finally, despite the Port Authority’s argument to the contrary, Dr.
    Cavanagh’s choice to limit his time frame to the period from 1996 through
    January 2001 (rather than, as defendant’s expert did, extending the analysis
    into 2005) was not unreasonable. The plaintiffs’ theory was that the Port
    Authority’s failures to promote them caused a disparate impact through 2001,
    when the EEOC charge in this case was filed. Dr. Cavanagh’s selected time
    frame was directly relevant to answering this question.
    2.    Specific Employment Practice
    The Port Authority next argues that there was insufficient evidence to
    support the plaintiffs’ disparate impact claim on the ground that plaintiffs either
    failed to identify a specific promotion practice resulting in a disparate impact on
    Asian Americans or failed to show that the Port Authority’s promotion process
    could not be separated into component parts for analysis. According to the Port
    Authority,     the    promotion        process   involved      three    separate
    33
    steps—recommendation by a commanding officer, approval by the Chiefs’ Board,
    and selection by the Superintendent—and these steps were wholly capable of
    being separated from each other for the purpose of statistical analysis. For the
    following reasons, we disagree.
    To make out a disparate impact claim (or, more generally, to rely on
    statistical evidence), a plaintiff must identify a specific discriminatory
    employment practice. See Wal-Mart Stores, Inc. v. Dukes, 
    131 S. Ct. 2541
    ,
    2555–56 (2011) (“[R]espondents have identified no ‘specific employment
    practice’ . . . . Merely showing that Wal-Mart’s policy of discretion has produced
    an overall sex-based disparity does not suffice.”); Watson, 
    487 U.S. at 994
    (“Especially in cases where an employer combines subjective criteria with the
    use of more rigid standardized rules or tests, the plaintiff is in our view
    responsible for isolating and identifying the specific employment practices that
    are allegedly responsible for any observed statistical disparities.”). Title VII,
    however, expressly provides that “if the complaining party can demonstrate to
    the court that the elements of a respondent’s decisionmaking process are not
    capable of separation for analysis, the decisionmaking process may be analyzed
    as one employment practice.”      42 U.S.C. § 2000e-2(k)(1)(B)(i).    Whether a
    particular decisionmaking process is capable of separation for analysis largely
    turns on the details of the specific process and its implementation in a given
    34
    case. See McClain v. Lufkin Indus., 
    519 F.3d 264
    , 278 (5th Cir. 2008); cf.
    Meachem v. Knolls Atomic Power Lab., 
    381 F.3d 56
    , 74 (2d Cir. 2004), vacated
    on other grounds, 
    544 U.S. 957
     (2005).
    Here, the evidence amply demonstrated that recommendation by the
    Chief’s Board could not be separated from the rest of the promotion process for
    the purpose of statistical analysis. Such recommendation was neither necessary
    nor sufficient for promotion, and the weight it carried in the process was both
    unclear and variable. For example, two candidates who were not recommended
    by the Chiefs’ Board in January 2003 were nonetheless promoted by the
    Superintendent later that month, even as others who received unanimous
    recommendations from the Chiefs were not promoted for a year, or two years.
    Another Superintendent did not bother to use the Chiefs’ Board at all.
    Recommendation by the Chiefs’ Board was therefore not capable of separation
    from the rest of the promotion process.
    The commanding officers’ recommendations were similarly inseparable
    from the Superintendent’s ultimate decisions regarding promotions because they
    played an indeterminate role in the integrated promotion process. For example,
    former Chief Thomas Farrell testified that he occasionally would ask for
    performance evaluations of everyone on the eligible list—not just those who were
    recommended by commanding officers—while other testimony indicated that
    35
    commanding officers’ recommendations were often important in the promotion
    process. We therefore agree with the district court that these “steps” in the
    promotion process were not capable of separation for analysis. See Port Auth.
    II, 
    681 F. Supp. 2d at 464
    . Accordingly, the decisionmaking process involved in
    promotions to Sergeant was properly analyzed as one employment practice.
    3.    Proof of Intent
    The Port Authority next argues that it was entitled to judgment as a
    matter of law on the plaintiffs’ individual disparate treatment claims because
    many of the plaintiffs’ anecdotes of intentional discrimination were merely
    “situations involving personal affront as opposed to examples of overt racism,”
    and moreover, that “[n]one of the specific instances relied upon by plaintiffs took
    place in the context of promotion.” Appellants’ Reply Br. at 17. Even if we were
    to accept the Port Authority’s characterization of these accounts of
    discrimination, however, the plaintiffs also provided evidence that they were
    better qualified for promotion than several white officers who were promoted
    instead. In conjunction with the plaintiffs’ statistical evidence, we conclude that
    this anecdotal evidence of intent was sufficient for a reasonable jury to conclude
    that the Port Authority intentionally discriminated against the plaintiffs by
    failing to promote them.
    36
    III. Damages and the Statute of Limitations
    The Port Authority argues, finally, that it was improperly assessed back
    pay and compensatory damages for harms that were suffered by the plaintiffs
    prior to August 2, 2000. The district court disagreed because it believed that the
    “continuing violation” doctrine applied in the context of plaintiffs’ disparate
    impact allegations so that damages could properly be awarded for failures to
    promote that occurred outside the limitations period.10 We agree with the Port
    Authority and hold that the continuing violation doctrine does not apply to
    plaintiffs’ disparate impact proof. As a result, we further conclude: (1) that the
    back pay awards to Eng, Lew, Stanley Chin, and Fong must be vacated, as well
    as the retroactive promotion of Lew and the salary and pension adjustments for
    Lew, Stanley Chin, and Fong; and (2) that the jury’s compensatory damage
    awards with regard to all seven prevailing plaintiffs must also be vacated. We
    remand to the district court for a new trial on damages and for reconsideration
    of equitable relief to the extent such relief was premised on failures to promote
    occurring outside the limitations period.
    10
    The district court reached a similar conclusion with regard to plaintiffs’
    pattern-or-practice allegations but, for the reasons already stated, see supra Part I, we
    have concluded that this theory of liability was not properly submitted to the jury.
    37
    A.    The Continuing Violation Doctrine
    It has been the law of this Circuit that “[u]nder the continuing violation
    exception to the Title VII limitations period, if a Title VII plaintiff files an EEOC
    charge that is timely as to any incident of discrimination in furtherance of an
    ongoing policy of discrimination, all claims of acts of discrimination under that
    policy will be timely even if they would be untimely standing alone.” Lambert
    v. Genesse Hosp., 
    10 F.3d 46
    , 53 (2d Cir. 1993), abrogated on other grounds by
    Kasten v. Saint-Gobain Performance Plastics Corp., 
    131 S. Ct. 1325
    , 1329–30
    (2011); see also Patterson v. Cnty. of Oneida, 
    375 F.3d 206
    , 220 (2d Cir. 2004);
    Fitzgerald v. Henderson, 
    251 F.3d 345
    , 359 (2d Cir. 2001); Van Zant v. KLM
    Royal Dutch Airlines, 
    80 F.3d 708
    , 713 (2d Cir. 1996); Cornwall v. Robinson, 
    23 F.3d 694
    , 703–04 (2d Cir. 1994). Applying this principle, the district court in
    this case concluded that the Port Authority could be liable, and assessed
    damages, for discriminatory failures to promote outside the statute of limitations
    because, pursuant to the plaintiffs’ disparate impact theory, those failures to
    promote were the product of an ongoing discriminatory policy that continued
    after August 2, 2000, thus triggering the continuing-violation doctrine. See Port
    Auth. II, 
    681 F. Supp. 2d at 463
    .
    *   *    *
    38
    The Port Authority argues that the continuing-violation doctrine does not
    apply in this case because (1) the plaintiffs did not identify a specific, ongoing
    discriminatory policy or custom; and (2) under the Supreme Court’s decision in
    National Railroad Passenger Corp. v. Morgan, 
    536 U.S. 101
     (2002), failures to
    promote are “discrete acts” of discrimination and thus do not implicate the
    continuing-violation doctrine. Because we agree with the Port Authority’s
    second argument, we do not address the first.
    In Morgan, the Supreme Court unanimously rejected the Ninth Circuit’s
    view that a series or pattern of “related discrete acts” could constitute one
    continuous “unlawful employment practice” for purposes of the statute of
    limitations. 
    Id. at 111
    . Rather, the Court held that “discrete discriminatory acts
    are not actionable if time barred, even when they are related to acts alleged in
    timely filed charges. Each discrete discriminatory act starts a new clock for
    filing charges alleging that act.” 
    Id. at 113
    . By a divided vote, however, the
    Morgan Court distinguished such discrete acts from an allegedly hostile work
    environment, which it held could be a continuing violation because its “very
    nature involves repeated conduct.” 
    Id. at 115
    . “Such claims are based on the
    cumulative effect of individual acts,” the Court wrote, noting that “a single act
    of harassment may not be actionable on its own.” 
    Id.
    39
    The plaintiffs argue that Morgan’s analysis of “discrete acts” cannot apply
    to disparate impact claims because such claims—like hostile work environment
    claims—are “necessarily based on the cumulative effect of a particular practice
    over time.” Appellees’ Br. at 28. It is true that Morgan involved only an
    individual disparate treatment claim premised on a series of related discrete
    acts, and therefore did not directly address whether the continuing-violation
    doctrine applies where an ongoing discriminatory policy results in discrete
    discriminatory acts both before and after the limitation date. See Morgan, 
    536 U.S. at 107
     (noting in passing that in the Ninth Circuit, pre-Morgan, another
    type of continuing violation could be established by showing “a systematic policy
    or practice of discrimination that operated, in part, within the limitations
    period,” but neither endorsing nor repudiating that category of continuing
    violations); 
    id.
     at 115 n.9 (“We have no occasion here to consider the timely filing
    question with respect to ‘pattern-or-practice’ claims brought by private litigants
    as none are at issue here.”). Morgan’s reasoning, however, demonstrates that
    a plaintiff may recover for a failure to promote—regardless whether it was
    caused by an ongoing discriminatory policy—only if he files an EEOC charge
    within 180 or 300 days of that decision.11
    11
    As Morgan notes, the 300-day limitations period, inapplicable here, applies in
    those states that have “an entity with the authority to grant or seek relief with respect
    to the alleged unlawful practice” and where an employee initially files a grievance with
    that entity. 
    536 U.S. at 109
    .
    40
    Morgan established that an employer’s failure to promote is by its very
    nature a discrete act. “Discrete acts such as termination, failure to promote,
    denial of transfer, or refusal to hire are easy to identify,” the Court wrote. 
    Id. at 114
     (emphasis added); see also Forsyth v. Fed’n Emp’t & Guidance Serv., 
    409 F.3d 565
    , 572 (2d Cir. 2005), abrogated on other grounds by Ledbetter v.
    Goodyear Tire & Rubber Co., 
    550 U.S. 618
     (2007). Moreover, each discrete act
    necessarily “constitutes a separate actionable ‘unlawful employment practice,’”
    Morgan, 
    536 U.S. at
    114—unlike the incidents that comprise a hostile work
    environment claim, which may not be individually actionable, 
    id. at 115
    . Both
    the employer and the aggrieved party may therefore rely on the clear and
    predictable statute of limitations when contemplating prospective litigation
    regarding failures to promote or other discrete acts. As Justice Ginsburg has
    explained:
    A worker knows immediately if she is denied a promotion or
    transfer, if she is fired or refused employment. And promotions,
    transfers, hirings, and firings are generally public events, known to
    co-workers. When an employer makes a decision of such open and
    definitive character, an employee can immediately seek out an
    explanation and evaluate it for pretext.
    Ledbetter, 
    550 U.S. at 649
     (Ginsburg, J., dissenting).         Accordingly, under
    Morgan, every failure to promote is a discrete act that potentially gives rise to
    a freestanding Title VII claim with its own filing deadline.
    41
    Discrete acts of this sort, which fall outside the limitations period, cannot
    be brought within it, even when undertaken pursuant to a general policy that
    results in other discrete acts occurring within the limitations period. This is the
    conclusion of every circuit to consider the question after Morgan. Each of our
    sister circuits has held that an allegation of an ongoing discriminatory policy
    does not extend the statute of limitations where the individual effects of the
    policy that give rise to the claim are merely discrete acts. See, e.g., Williams v.
    Giant Food Inc., 
    370 F.3d 423
    , 429 (4th Cir. 2004) (“Nor does [the plaintiff’s]
    allegation of a 20-year ‘pattern or practice’ of discrimination extend the
    applicable limitations periods.”); Davidson v. Am. Online, Inc., 
    337 F.3d 1179
    ,
    1185–86 (10th Cir. 2003) (holding that claims cannot be premised on an
    untimely discrete act “even if the discrete act was part of a company-wide or
    systemic policy”); cf. Tademe v. St. Cloud State Univ., 
    328 F.3d 982
    , 988 (8th Cir.
    2003) (“Although [the plaintiff] argues that the district court failed to consider
    that he was asserting a pattern-or-practice of discrimination, Morgan makes
    clear that the failure to promote, refusal to hire, and termination are generally
    considered separate violations.”); Lyons v. England, 
    307 F.3d 1092
    , 1107 & n.8
    (9th Cir. 2002) (holding that an individual plaintiff’s “assertion that this series
    of discrete acts flows from a company-wide, or systemic, discriminatory practice
    will not succeed in establishing the employer’s liability for acts occurring outside
    42
    the limitations period,” but distinguishing and declining to address class-wide
    pattern-or-practice claims).
    This conclusion is not altered by the fact that the plaintiffs employ the
    disparate impact method of proof. To prevail on a disparate impact claim, a
    plaintiff must “demonstrate[] that a respondent uses a particular employment
    practice that causes a disparate impact.”      42 U.S.C. § 2000e-2(k)(1)(A)(i)
    (emphasis added). In Lewis v. City of Chicago, 
    130 S. Ct. 2191
    , 2197–99 (2010),
    the Supreme Court interpreted this language to mean that every “use” of an
    employment practice that causes a disparate impact is a separate actionable
    violation of Title VII with its own 180- or 300-day statute-of-limitations clock.
    See 
    id.
     at 2197–99. Accordingly, under Lewis and Morgan, each time the Port
    Authority failed to promote one of the plaintiffs, that plaintiff had 180 days to
    challenge the decision.
    In an attempt to distinguish Morgan, the plaintiffs argue that they
    “challenge the process by which the Port Authority made promotion decisions,
    rather than any specific promotion decision.” Appellees’ Br. at 29. But this
    argument hurts rather than helps them.          In Lewis, the Supreme Court
    considered the case of an allegedly discriminatory examination used by the City
    of Chicago to make hiring decisions. The examination’s scores and the City’s
    plan to hire based on certain cutoff scores were announced outside the
    43
    limitations period, but the actual hiring occurred within the limitations period.
    See Lewis, 
    130 S. Ct. at
    2195–96. The Supreme Court explained that although
    “[i]t may be true that the City’s . . . decision to adopt the cutoff score (and to
    create a list of the applicants above it) gave rise to a freestanding disparate-
    impact claim[,] [i]f that is so, the City is correct that since no timely charge was
    filed attacking it, the City is now entitled to treat that past act as lawful.” 
    Id.
    at 2198–99 (citation and internal quotation marks omitted). If the process by
    which the Port Authority promoted police officers from its eligibility lists did not
    materially change within the limitations period, as the plaintiffs claim, then the
    Port Authority is entitled to treat the process as lawful. See 
    id. at 2199
    . The
    process itself therefore cannot be challenged; rather, only specific failures to
    promote that occurred within the limitations period are actionable.
    B.    Damages & Equitable Relief
    The district court properly instructed the jury regarding the statute of
    limitations for plaintiffs’ individual disparate treatment claims, and the jury
    indicated on the verdict sheet its express findings that the Port Authority made
    discriminatory decisions not to promote Eng, Fong, Lew, Stanley Chin, Yum,
    Martinez, and Lim “after August 2, 2000.” Pursuant to the district court’s
    conclusion that the continuing violation doctrine was applicable to plaintiffs’
    disparate impact proof, however, the jury was permitted to assess damages for
    44
    failures to promote occurring outside the limitations period.12 With this in mind,
    we turn to the Port Authority’s claim that the damages and equitable awards
    here were premised on time-barred claims and were otherwise excessive.
    1.       Back Pay
    The jury’s back-pay awards correspond precisely to certain calculations of
    the plaintiffs’ damages expert, such that both parties and the district court
    agreed below that the jury found that four of the prevailing plaintiffs (Eng, Lew,
    Stanley Chin, and Fong) would have been promoted on October 31, 1999, and the
    other three (Yum, Lim, and Martinez) would have been promoted on September
    30, 2002.
    12
    We note that the jury was not properly instructed regarding the statute
    of limitations as it applied to the plaintiffs’ disparate impact proof. “To find
    disparate impact,” the district court instructed the jury, “you are not required
    to consider whether the Port Authority intended to discriminate, but whether
    the Port Authority’s promotion practices were the cause of a disparity, if any,
    after August 2, 2000.” When the jury asked for clarification regarding the
    timing, the district court told them simply, “There has to be an effect after
    August 2, 2000.” This phrasing suggests that the jury could find disparate
    impact liability where the Port Authority used an employment practice only
    outside the limitations period that resulted in a disparate effect that then
    passively persisted into the limitations period. Lewis, however, makes clear that
    a disparate impact claim requires plaintiffs to plead and prove that defendants,
    within the limitations period, used an employment practice that had a disparate
    impact. 
    130 S. Ct. at
    2197–99. In other words, the cause—not merely the
    effect—must occur within the limitations period. The district court’s instruction
    was therefore erroneous. The Port Authority, however, does not challenge the
    jury’s liability finding on this basis, but simply the award of damages and
    equitable relief for harms occurring before August 2, 2000. Accordingly, we
    deem the error waived. See Norton v. Sam’s Club, 
    145 F.3d 114
    , 117 (2d Cir.
    1998).
    45
    The Port Authority argues first that the jury could not award back pay to
    multiple plaintiffs dating back to the same date when fewer than that number
    of plaintiffs were actually promoted on that date. It points out that there were
    only three promotions on October 31, 1999, but the jury awarded back pay to
    four plaintiffs corresponding to a failure to promote on that date. Likewise,
    there were only two promotions on September 30, 2002, but the jury awarded
    back pay to three plaintiffs extending back to that date. The Port Authority
    urges that the back pay awards for this reason “suffer from a fundamental error
    of law” and must be vacated. Appellants’ Br. at 46.
    We disagree. Although in many circumstances an employer may have only
    a fixed, limited number of possible promotion slots such that relief would be
    limited accordingly, see Dougherty v. Barry, 
    869 F.2d 605
    , 614–15 (D.C. Cir.
    1989) (R.B. Ginsburg, J.), that is not the case here. The plaintiffs presented
    evidence that the Port Authority could and did create new Sergeant-level
    vacancies. For example, during cross-examination, Chief Farrell conceded that
    the Superintendent occasionally would not specify the number of new Sergeants
    he was looking for, and that from time to time the Port Authority created new
    Sergeant-level vacancies based on staffing needs. A reasonable jury could
    therefore have concluded that the Port Authority could have promoted three
    46
    officers rather than two on September 30, 2002, and four officers rather than
    three on October 31, 1999.
    Nevertheless, the back pay awards to Christian Eng, Alan Lew, Stanley
    Chin, and Milton Fong were improper because they were premised on a
    hypothetical promotion date outside the statute of limitations. As explained
    earlier, see supra section III.A, the district court should have instructed the jury
    that the Port Authority could be liable only for discriminatory failures to
    promote after August 2, 2000, and that individual remedies were limited
    accordingly. We therefore vacate the back pay awards to these four plaintiffs
    and remand to the district court for determination of their proper back-pay
    awards.
    2.    Compensatory Damages
    The Port Authority next argues that the jury’s compensatory damages
    awards were based on discriminatory acts that predated the onset of the statute
    of limitations period. The plaintiffs do not contest this allegation, but rather
    embrace it, and defend the awards solely on the basis of the continuing violation
    theory. See Appellees’ Br. at 48 (“The compensatory damages awards correlate
    to each Plaintiff’s seniority on the job—and thus, the duration of each Plaintiff’s
    distress—awarding $250,000 to the two Plaintiffs who each had more than
    twenty-nine years on the job, $100,000 and $75,000 to the three Plaintiffs who
    47
    had between twenty and twenty-five years on the job, and $15,000 to the two
    Plaintiffs who had sixteen years on the job.”). “When ‘[i]t is not possible to
    ascertain what portions of the compensatory and punitive damages awards were
    attributable’ to claims that were time-barred, the damages awards must be
    vacated” and remanded for a new trial on damages.             Annis v. Cnty. of
    Westchester, 
    136 F.3d 239
    , 248 (2d Cir. 1998) (quoting Rush v. Scott Specialty
    Gases, Inc., 
    113 F.3d 476
    , 485 (3d Cir. 1997)). Because the jury may have
    included time-barred claims with respect to each of the plaintiffs, we vacate all
    seven prevailing plaintiffs’ compensatory damages awards and remand for a new
    trial on damages. On remand, the district court should instruct the jury to
    award damages only for injuries stemming from a discriminatory failure to
    promote after August 2, 2000.
    3.    Equitable Relief
    The Port Authority next argues that the district court’s equitable relief of
    retroactive promotions and salary and pension adjustments should have been
    granted only pro rata under the theory that only a limited number of promotions
    were available on each day. See Dougherty, 
    869 F.2d at
    614–15. But this
    argument fails with respect to equitable relief for the same reason it fails
    regarding back pay, see supra section III.B.1; on the evidence presented, a
    48
    reasonable jury could have concluded that the Port Authority could promote
    more officers on a given date than it chose to.
    The equitable relief should not, however, have extended retroactive
    promotions or salary or pension adjustments beyond the limitations period. The
    district court’s award of salary and pension adjustments for Milton Fong,
    Stanley Chin, and Alan Lew, as well as the retroactive promotion of Alan Lew,
    must be vacated and remanded for reconsideration because the award of such
    equitable relief was premised on a hypothetical promotion date of October 31,
    1999. On remand, the district court should determine the date, after August 2,
    2000, that each of these three plaintiffs would have been promoted absent
    discrimination and may grant appropriate equitable relief accordingly.
    IV. Exclusion of Lundquist’s Expert Testimony
    We now turn to the cross-appeal. The four cross-appealing plaintiffs argue
    that the district court erred in excluding the expert testimony of Dr. Lundquist,
    who would have testified that the Port Authority’s promotion procedure was so
    unstructured and subjective that it fell below professional standards, and who
    would have compared the qualifications of the plaintiffs with those of the officers
    who were actually promoted. Expert testimony is admissible if it “(a) will help
    the trier of fact to understand the evidence or to determine a fact in issue,” so
    long as “(b) the testimony is based upon sufficient facts or data; (c) the testimony
    49
    is the product of reliable principles and methods; and (d) the expert has reliably
    applied the principles and methods to the facts of the case.” Fed. R. Evid. 702.
    A district court’s exclusion of expert testimony is reviewed for abuse of
    discretion, and “[a] decision to admit or exclude expert scientific testimony is not
    an abuse of discretion unless it is ‘manifestly erroneous.’” Amorgianos v. Nat’l
    R.R. Passenger Corp., 
    303 F.3d 256
    , 265 (2d Cir. 2002) (quoting McCullock v.
    H.B. Fuller Co., 
    61 F.3d 1038
    , 1042 (2d Cir. 1995)). “Further, an erroneous
    evidentiary ruling warrants a new trial only when ‘a substantial right of a party
    is affected,’ as when ‘a jury’s judgment would be swayed in a material fashion by
    the error.’” Lore v. City of Syracuse, 
    670 F.3d 127
    , 155 (2d Cir. 2012) (quoting
    Arlio v. Lively, 
    474 F.3d 46
    , 51 (2d Cir. 2007)).
    The district court did not abuse its discretion in concluding that it lacked
    evidence that Dr. Lundquist’s testimony was based on established principles and
    methods and that, in any event, her testimony would not have provided
    assistance to the trier of fact beyond that afforded by the arguments of counsel,
    as required by Rule 702. On appeal, the plaintiffs argue that the district court
    failed to acknowledge the portion of Dr. Lundquist’s testimony that compared
    the qualifications of the plaintiffs with those of the white officers who were
    promoted instead.      But Dr. Lundquist’s analysis as to the comparative
    qualifications of the plaintiffs was both brief and simple, relying mostly on
    50
    various officers’ years of experience, commendations, discipline, and absences.
    For each of the four plaintiffs who did not prevail, Dr. Lundquist merely
    summed up their qualifications in a few sentences and then compared each of
    them to two officers who were promoted instead but whose record suggested that
    they may have been less qualified. For example, she compared both Michael
    Chung and Sanrit Booncome to a promoted officer named Gary Griffith, whom
    she described only as having “sixty-seven absences in 2000 alone.”
    The district court did not abuse its discretion in concluding that expert
    analysis was not required to help the jury understand such evidence. Indeed,
    the plaintiffs’ attorneys made the same points in argument that were made in
    Dr. Lundquist’s report. Chung and Booncome’s qualifications were established
    in detail while they were on the stand, and their attorney brought out Gary
    Griffith’s relative lack of experience and his significant number of absences
    through questioning of a former Superintendent. The plaintiffs’ attorneys,
    moreover, emphasized throughout the trial the relative qualifications of the
    plaintiffs when compared with officers who were promoted. At the trial’s
    conclusion, the plaintiffs’ summation detailed the qualifications of each of the
    plaintiffs in almost exactly the same way as Dr. Lundquist’s testimony would
    have, including occasionally comparing a plaintiff with someone who had been
    promoted.    The district court therefore did not abuse its discretion in
    51
    determining that Dr. Lundquist’s testimony was not relevant expert testimony
    that would help the jury understand the facts at issue.
    V. Sanctions for Spoliation
    Finally, cross-appealing plaintiff Howard Chin argues that the district
    court erred in denying the plaintiffs’ motion requesting an adverse inference
    instruction due to the Port Authority’s destruction of the promotion folders used
    to make promotions off of the 1999 eligible list.13 See Port Auth. I, 
    601 F. Supp. 2d 566
     (S.D.N.Y. 2009).       The Port Authority does not dispute that, upon
    receiving notice of the filing of plaintiffs’ EEOC charge in February 2001, it had
    an obligation to preserve the promotion folders yet failed to do so. It argues,
    however, that the district court did not abuse its discretion in denying an
    adverse inference instruction. We agree.
    “[A] party seeking an adverse inference instruction based on the
    destruction of evidence must establish (1) that the party having control over the
    evidence had an obligation to preserve it at the time it was destroyed; (2) that
    the records were destroyed with a culpable state of mind; and (3) that the
    destroyed evidence was relevant to the party’s claim or defense such that a
    reasonable trier of fact could find that it would support that claim or defense.”
    13
    Howard Chin is the only one of the four cross-appealing plaintiffs who claims
    to have lost relevant evidence due to the Port Authority’s destruction of the promotion
    folders.
    52
    Residential Funding Corp. v. DeGeorge Fin. Corp., 
    306 F.3d 99
    , 107 (2d Cir.
    2002) (internal quotation marks omitted). If these elements are established, a
    district court may, at its discretion, grant an adverse inference jury instruction
    insofar as such a sanction would “serve[] [the] threefold purpose of (1) deterring
    parties from destroying evidence; (2) placing the risk of an erroneous evaluation
    of the content of the destroyed evidence on the party responsible for its
    destruction; and (3) restoring the party harmed by the loss of evidence helpful
    to its case to where the party would have been in the absence of spoliation.”
    Byrnie v. Town of Cromwell, 
    243 F.3d 93
    , 107 (2d Cir. 2001). Our review of a
    district court’s decision on a motion for discovery sanctions is limited to abuse
    of discretion, which includes errors of law and clearly erroneous assessments of
    evidence. See Residential Funding Corp., 
    306 F.3d at 107
    . “[A]bsent a showing
    of prejudice, the jury’s verdict should not be disturbed.” 
    Id. at 112
    .
    Howard Chin argues that the Port Authority’s failure even to issue a
    litigation hold regarding the promotion folders at any point between 2001 and
    2007 amounted to gross, rather than simple, negligence. We reject the notion
    that a failure to institute a “litigation hold” constitutes gross negligence per se.
    Contra Pension Comm. of Univ. of Montreal Pension Plan v. Banc of Am. Secs.,
    LLC, 
    685 F. Supp. 2d 456
    , 464–65 (S.D.N.Y. 2010). Rather, we agree that “the
    better approach is to consider [the failure to adopt good preservation practices]
    53
    as one factor” in the determination of whether discovery sanctions should issue.
    Orbit Comm’ns, Inc. v. Numerex Corp., 
    271 F.R.D. 429
    , 441 (S.D.N.Y. 2010).
    Moreover, as the district court recognized, see Port Auth. I, 
    601 F. Supp. 2d at 570
    , a finding of gross negligence merely permits, rather than requires, a district
    court to give an adverse inference instruction. See Residential Funding Corp.,
    
    306 F.3d at 109
    ; Byrnie, 
    243 F.3d at 108
    . Even if we assume arguendo both that
    the Port Authority was grossly negligent and that the documents here were
    “relevant,” we have repeatedly held that a “case-by-case approach to the failure
    to produce relevant evidence,” at the discretion of the district court, is
    appropriate. Residential Funding Corp., 
    306 F.3d at 108
     (quoting Reilly v.
    Natwest Mkts. Grp., 
    181 F.3d 253
    , 267 (2d Cir. 1999)). In this case, the district
    court concluded that an adverse inference instruction was inappropriate in light
    of the limited role of the destroyed folders in the promotion process and the
    plaintiffs’ ample evidence regarding their relative qualifications when compared
    with the officers who were actually promoted. See Port Auth. I, 
    601 F. Supp. 2d at
    570–71. At trial, Howard Chin was able to establish his service record and
    honors, and Chief Charles Torres testified that Howard Chin was very smart
    and a good employee. Under these circumstances, the district court did not
    abuse its discretion in concluding that an adverse inference instruction was
    inappropriate.
    54
    CONCLUSION
    For the foregoing reasons, we affirm the district court’s conclusion that the
    Port Authority is liable to Christian Eng, Nicholas Yum, Alan Lew, David Lim,
    George Martinez, Stanley Chin, and Milton Fong under both the individual
    disparate treatment and disparate impact theories. We also affirm the denial
    of individual relief to Howard Chin, Richard Wong, Sanrit Booncome, and
    Michael Chung. Because the district court erred in applying the continuing-
    violation exception to the plaintiffs’ claims, however, we: (1) vacate the jury’s
    back pay awards with respect to Christian Eng, Alan Lew, Stanley Chin, and
    Milton Fong; (2) vacate the jury’s compensatory damage awards with respect to
    Christian Eng, Nicholas Yum, Alan Lew, David Lim, George Martinez, Stanley
    Chin, and Milton Fong; (3) vacate the retroactive promotion of Alan Lew; and (4)
    vacate the salary and pension adjustments for Alan Lew, Stanley Chin, and
    Milton Fong. We remand all of these remedies issues to the district court for a
    new trial solely on damages and for the reconsideration of equitable relief. On
    remand, individual relief should be awarded only insofar as it corresponds to
    discriminatory failures to promote committed after August 2, 2000.
    55
    

Document Info

Docket Number: 10-1904-cv(L), 10-203I-cv(XAP)

Citation Numbers: 685 F.3d 135, 2012 U.S. App. LEXIS 14088, 115 Fair Empl. Prac. Cas. (BNA) 720, 2012 WL 2760776

Judges: McLaughlin, Cabranes, Livingston

Filed Date: 7/10/2012

Precedential Status: Precedential

Modified Date: 11/5/2024

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