Howard Hess Dental Laboratories Inc. v. Dentsply International, Inc. ( 2005 )


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  •                                                                                                                            Opinions of the United
    2005 Decisions                                                                                                             States Court of Appeals
    for the Third Circuit
    9-21-2005
    Howard Hess Dental v. Dentsply Intl Inc
    Precedential or Non-Precedential: Precedential
    Docket No. 04-1979
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    Recommended Citation
    "Howard Hess Dental v. Dentsply Intl Inc" (2005). 2005 Decisions. Paper 465.
    http://digitalcommons.law.villanova.edu/thirdcircuit_2005/465
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    PRECEDENTIAL
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    No. 04-1979
    HOWARD HESS DENTAL LABORATORIES
    INCORPORATED;
    PHILIP GUTTIEREZ, *d/b/a Dentures Plus, on behalf
    of themselves and all other similarly situated,
    Appellants
    v.
    DENTSPLY INTERNATIONAL, INC.
    *Amended per Clerk's Order dated 4/30/04
    No. 04-1980
    JERSEY DENTAL LABORATORIES, f/k/a Howard
    Hess Dental
    Laboratories Incorporated; PHILIP GUTTIEREZ, *d/b/a
    Dentures Plus, on behalf of themselves and all others
    similarly situated,
    Appellants
    v.
    DENTSPLY INTERNATIONAL, INC.;
    A. LEVENTHAL & SONS, INC.;
    ACCUBITE DENTAL LAB, INC.; ADDIUM DENTAL
    PRODUCTS;
    ARNOLD DENTAL SUPPLY COMPANY;
    ATLANTA DENTAL SUPPLY COMPANY;
    BENCO DENTAL COMPANY; BURKHART DENTAL
    SUPPLY COMPANY;
    DARBY DENTAL LABORATORY SUPPLY CO., INC.;
    DENTAL SUPPLIES
    AND EQUIPMENT, INC.; EDENTALDIRECT.COM, INC.,
    as successor to
    Crutcher Dental, Inc.; HENDON DENTAL SUPPLY, INC.;
    HENRY SCHEIN, INC., and its affiliates including, without
    limitation, Zahn Dental Co., Inc.;
    IOWA DENTAL SUPPLY CO.;
    JAHN DENTAL SUPPLY COMPANY; JB DENTAL
    SUPPLY CO., INC.;
    JOHNSON & LUND CO., INC.; KENTUCKY DENTAL
    SUPPLY COMPANY, INC.
    a/k/a KDSC Liquidation Corp.; MARCUS
    DENTAL SUPPLY CO;
    MIDWAY DENTAL SUPPLY INC.; MOHAWK DENTAL
    CO., INC.; NASHVILLE
    DENTAL, INC.; NOWAK DENTAL SUPPLIES, INC.;
    PATTERSON DENTAL
    COMPANY, its subsidiaries, predecessors, successors,
    assigns,
    affiliates and related companies; PEARSON DENTAL
    2
    SUPPLIES, INC.;
    RYKER DENTAL OF KENTUCKY, INC.; THOMPSON
    DENTAL COMPANY
    *Amended per Clerk's Order dated 4/30/04
    On Appeal from the United States District Court
    for the District of Delaware
    (D.C. Civil Action Nos. 99-cv-00255 / 01-cv-00267)
    District Judge: Honorable Sue L. Robinson
    Argued April 7, 2005
    Before: BARRY, AMBRO and
    GREENBERG, Circuit Judges
    (Filed September 21, 2005)
    Thomas A. Dubbs, Esquire (Argued)
    Richard T. Joffe, Esquire
    Goodkind, Labaton, Rudoff & Sucharow
    100 Park Avenue, 12th Floor
    New York, NY 10017
    Pamela S. Tikellis, Esquire
    Robert J. Kriner, Jr. Esquire
    Chimicles & Tikellis, LLP
    One Rodney Square, Suite 500
    3
    P.O. Box 1035
    Wilmington, DE 19899
    Counsel for Appellants
    Richard A. Ripley, Esquire
    Margaret M. Zwisler, Esquire (Argued)
    Kelly A. Clement, Esquire
    Eric J. McCarthy, Esquire
    Charles R. Price, Esquire
    Howrey, Simon, Arnold & White
    1299 Pennsylvania Avenue, N.W.
    Washington, D.C. 20004
    Brian M. Addison, Esquire
    Dentsply International, Inc.
    Susquehanna Commerce Center
    221 West Philadelphia Street
    York, PA 17405
    W. Harding Drane, Jr., Esquire
    Potter Anderson & Corroon LLP
    1313 North Market Street, 6th Floor
    P.O. Box 951
    Wilmington, DE 19899
    C. Scott Reese, Esquire
    Cooch & Taylor
    824 Market Street Mall, Suite 1000
    P.O. Box 1680
    Wilmington, DE 19899
    4
    James J. Maron, Esquire
    Maron Marvel & Wilks, P.A.
    1300 North Broom Street
    P.O. Box 288
    Wilmington, DE 19899
    Counsel for Appellees
    OPINION OF THE COURT
    AMBRO, Circuit Judge
    We consider consolidated appeals involving the same
    parties in two antitrust suits, Howard Hess Dental Laboratories,
    Inc. v. Dentsply Internationl, Inc. (“Hess”) and Jersey Dental
    Laboratories v. Dentsply International, Inc. (“Jersey Dental”).1
    Plaintiffs are dental laboratories who have brought these
    antitrust class actions on behalf of themselves and a class of
    similarly situated labs. Defendant Dentsply International, Inc.
    (“Dentsply”) markets artificial teeth used by the dental labs to
    make dentures. Plaintiffs allege, among other things, an
    exclusive-dealing conspiracy and a retail price-fixing conspiracy
    among Dentsply and its dealer-middlemen.
    1
    Hess Dental changed its name to “Jersey Dental” during
    the period between the two suits.
    5
    The District Court denied Plaintiffs standing to recover
    damages in both suits based primarily on Illinois Brick Co. v.
    Illinois, 
    431 U.S. 720
     (1977), which held that indirect purchaser
    plaintiffs do not have statutory standing to recover damages for
    “passed-on” overcharges.2 We hold that Plaintiffs may not
    recover damages in Hess (a) under the “co-conspirator”
    exception to Illinois Brick, (b) under the “control” exception to
    Illinois Brick, (c) under a non-overcharge theory of damages, or
    (d) for “drop shipments.” While Plaintiffs may not recover
    damages under either the control exception or a lost profits
    theory in Jersey Dental, they do have statutory standing under
    the co-conspirator exception to pursue an action for overcharge
    damages (including for drop shipped teeth) caused by the
    alleged retail price-fixing conspiracy, although not for the
    alleged exclusive-dealing conspiracy.
    2
    Section 4 of the Clayton Act provides that “any person
    who shall be injured in his business or property by reason of
    anything forbidden in the antitrust laws . . . shall recover
    threefold the damages by him sustained.” 
    15 U.S.C. § 15
    (a)
    (emphasis added). Illinois Brick determined that direct
    purchasers are the only parties “injured” in a manner that
    permits them to recover damages. 
    431 U.S. at 729, 735
    . It thus
    held that indirect purchaser plaintiffs do not have statutory
    standing to recover damages under Section 4 of the Clayton Act.
    
    Id.
    6
    Background
    Plaintiffs allege the following in one or both of the
    complaints.
    (1) Manufacturers of artificial teeth need to distribute
    through dealers in order to compete effectively. Dealers are the
    primary source of distribution to dental labs, which use the teeth
    to produce dentures. Dentsply uses a network of authorized
    dealers.
    (2) Plaintiffs have purchased Dentsply’s teeth both
    indirectly through Dentsply’s dealers and directly through “drop
    shipping.” Drop shipping occurs when a dealer does not have
    certain teeth in stock or cannot fulfill a lab’s order for some
    other reason and asks Dentsply to ship the teeth directly to a lab.
    When teeth are drop shipped, the dealer never has physical
    custody of them, but it does bill the lab for the teeth, collect
    payments from the lab, and pay Dentsply.
    (3) Dentsply has foreclosed its competitors’ access to
    dealers by explicitly agreeing with some dealers that they will
    not carry certain competing brands of teeth and by inducing
    other dealers not to carry those competing brands of teeth.
    Pursuant to its written policy called “Dealer Criterion Number
    6,” Dentsply threatens to terminate, and does terminate, dealers
    that add to their inventory teeth made by Dentsply’s competitors.
    Thus, unless Dentsply’s dealers were already selling another
    7
    manufacturer’s teeth before Dentsply imposed its exclusive-
    dealing policies, its dealers cannot sell other manufacturers’
    teeth unless they give up the opportunity to continue to sell
    Dentsply’s teeth. No rational dealer would be likely to make
    such a switch because, given Dentsply’s monopoly position (it
    has a 75-80% market share on a revenue basis), losing the ability
    to sell Dentsply’s teeth would hurt a dealer more than gaining
    the ability to sell Dentsply’s competitors’ teeth would help a
    dealer. By explicitly agreeing with some dealers that they will
    not carry certain competing brands of teeth and by enacting
    Dealer Criterion Number 6, Dentsply has foreclosured its rivals’
    access to adequate channels of distribution, and competition has
    been restricted. This has caused Dentsply’s market share to
    increase, the price of Dentsply’s and other manufacturers’ teeth
    to increase, and the availability of rival teeth to decrease.
    (4) Furthermore, by agreement among Dentsply and its
    dealers, Dentsply sets the dealers’ resale prices. It distributes a
    list of “suggested” prices for its dealers to charge dental labs.
    Before a dealer can charge a lower price, Dentsply must approve
    this “price deviation.” Price deviations have been granted only
    when a lab has been buying, or is thinking of buying, a
    competitor’s teeth because they are being sold for less than those
    of Dentsply. In those instances, Dentsply negotiates with the lab
    to allow it to buy teeth from the dealer at a price below
    Dentsply’s suggested price. The dealer then agrees to the price
    negotiated by Dentsply.
    8
    (5) Dentsply’s foreclosing of its competitors’ access to
    dealers and setting of the dealers’ resale prices have caused
    Plaintiffs to purchase Dentsply’s teeth at artificially high prices
    and lose profits from unrealized sales of Dentsply’s competitors’
    teeth.
    Procedural History
    In 1999, Plaintiffs filed the Hess suit against Dentsply
    alleging conspiracy to monopolize, attempt to monopolize, and
    maintenance of monopoly in violation of Section 2 of the
    Sherman Act, 
    15 U.S.C. § 2
    , and restraint of trade in violation
    of Section 3 of the Clayton Act, 
    15 U.S.C. § 14
    . Plaintiffs asked
    for both damages and an injunction. Dentsply moved for
    summary judgment, claiming that Plaintiffs lacked standing
    under Illinois Brick. The District Court granted Dentsply’s
    motion on Plaintiffs’ damages claims. The Court reasoned that:
    (1) a co-conspirator exception to Illinois Brick did not apply
    because Plaintiffs had not joined Dentsply’s dealers as co-
    defendants; (2) the control exception to Illinois Brick did not
    apply because Dentsply does not own its dealers; (3) Plaintiffs
    could not recover on a non-overcharge theory of damages
    because they had not articulated any such theory; and (4)
    Plaintiffs could not recover for drop shipments because they had
    specifically alleged that they were not direct purchasers, and
    even if they had alleged they were direct purchasers, they were
    indirect purchasers of drop shipments.
    9
    In 2001, Plaintiffs filed the Jersey Dental suit, this time
    naming as Dentsply’s co-defendants twenty-six of its then
    twenty-eight authorized dealers. Plaintiffs made substantially
    the same allegations as they did in Hess with one key addition:
    they claimed they were not only indirect purchasers but also
    direct purchasers. As in Hess, Plaintiffs asked for both damages
    and an injunction. Dentsply moved under Federal Rule of Civil
    Procedure 12(b)(6) to dismiss the claims for damages, citing
    Illinois Brick. The District Court granted the motion. The Court
    reasoned that: (1) Plaintiffs could not recover under a co-
    conspirator exception to Illinois Brick because the suit still
    implicated Illinois Brick’s policy concerns; (2) in Hess it had
    already rejected Plaintiffs’ argument that they could recover
    under the control exception to Illinois Brick; (3) Plaintiffs could
    not recover damages for lost profits because their complaint
    sought only overcharge damages and because, as Plaintiffs were
    indirect purchasers, Illinois Brick would bar recovery of lost
    profits anyway; and (4) in Hess it had already rejected Plaintiffs’
    argument that they could recover for drop shipped teeth.
    Plaintiffs then moved for leave to amend their complaint.
    Among the proposed additions to the complaint were allegations
    that “[t]he Dealer Defendants agree wiith Dentsply and and with
    each other” to abide by suggested retail prices and that “the
    prices at which the Dealer Defendants sell to dental laboratories
    are controlled by Dentsply and agreed to by the Dealer
    Defendants.” The District Court denied leave to amend because
    the amended pleading would not withstand a motion to dismiss.
    10
    It reasoned that: (1) the co-conspirator exception to Illinois
    Brick did not apply because the dealers could still sue Dentsply;
    (2) the control exception to Illinois Brick did not apply because
    the dealers were not subsidiaries of Dentsply; and (3) Illinois
    Brick barred recovery of lost profits damages because Plaintiffs
    were indirect purchasers.
    Plaintiffs moved pursuant to 
    28 U.S.C. § 1292
    (b) for
    certification of appealability of the orders dismissing the
    damage claims in Hess and Jersey Dental and the order denying
    their motion for leave to amend in Jersey Dental. The District
    Court granted these motions and certified the following
    question:
    Whether, under the circumstances here,
    application of Illinois Brick, 
    431 U.S. 720
     (1977),
    McCarthy v. Recordex Service, Inc., 
    80 F.3d 842
    (3d Cir. 1996), or other Third Circuit opinions
    dealing with Illinois Brick, prevents Plaintiffs
    from being able to recover damages against
    Dentsply International, Inc.
    Plaintiffs then petitioned our Court for permission to appeal,
    pursuant to 
    28 U.S.C. § 1292
    (b), the three orders certified by the
    District Court. We granted the petition and consolidated the
    appeals. In a Section 1292(b) appeal, our review is not limited
    to the specific question certified by the District Court. We may
    “consider all grounds which might require a reversal of the order
    11
    appealed from.” Merican, Inc. v. Caterpillar Tractor Co., 
    713 F.2d 958
    , 962 n.7 (3d Cir. 1983). We “may address any issue
    fairly included within the certified order because it is the order
    that is appealable, and not the controlling question identified by
    the [D]istrict [C]ourt.” Yamaha Motor Corp., U.S.A. v.
    Calhoun, 
    516 U.S. 199
    , 205 (1996) (emphasis in original)
    (internal quotation marks omitted).3
    Standard of Review
    As the Hess order partially granted Dentsply’s motion for
    summary judgment, our review is de novo. Mass. Sch. of Law
    at Andover, Inc. v. ABA, 
    107 F.3d 1026
    , 1032 (3d Cir. 1997).
    The first Jersey Dental order granted Dentsply’s motion to
    dismiss for failure to state a claim. Review of this order also
    merits de novo review. Worldcom, Inc. v. Graphnet, Inc., 
    343 F.3d 651
    , 653 (3d Cir. 2003). The second Jersey Dental order
    denied Plaintiffs’ motion for leave to amend the complaint on
    the ground that “the proposed amended complaint would not
    3
    We note that the Government has also sued Dentsply for
    alleged antitrust violations. See United States v. Dentsply Int’l,
    Inc., 
    399 F.3d 181
     (3d Cir. 2005). There we reversed the
    District Court’s judgment in favor of Dentsply and granted
    injunctive relief. In so doing, we determined that Dentsply had
    monopoly power (i.e., the power to exclude competitors) and
    that its exclusionary practices, particularly Dealer Criterion
    Number 6, had an anticompetitive effect. 
    Id. at 188-97
    .
    12
    survive a motion to dismiss under Fed. R. Civ. P. 12 (b)(6).”
    Dist. Ct. Mem. Ord. at 7 (Aug. 27, 2002). Where, as here, “the
    [D]istrict [C]ourt has based its decision to deny leave to amend
    on a legal conclusion that the amended pleading would not
    withstand a motion to dismiss, we review such a decision de
    novo.” Ziegler v. IBP Hog Mkt., Inc., 
    249 F.3d 509
    , 518 (6th
    Cir. 2001). Thus we review all three orders de novo.
    Discussion
    Illinois Brick lays many of the markers for our decision.
    In that case, the Supreme Court established the general rule that
    only direct purchasers from antitrust violators may recover
    damages in antitrust suits. The plaintiffs alleged that concrete
    block manufacturers conspired to fix the prices at which
    concrete blocks were sold to masonry contractors. They in turn
    “passed on” overcharges to the general contractors, who then
    passed them on to the plaintiffs, who had purchased buildings
    made from the concrete block. The plaintiffs, therefore, were
    “indirect purchasers” of concrete block, which “passe[d]
    through two separate levels in the chain of distribution before
    reaching” them. 
    431 U.S. at 726
    .
    Before the Court was whether the indirect purchaser
    plaintiffs could use this pass-on theory to state a damages claim
    against the alleged antitrust violators upstream. It had
    previously held that an antitrust defendant could not argue that
    a plaintiff who had purchased a product directly from the
    13
    defendant was not injured because it had passed on the illegal
    overcharge to its own customers. Hanover Shoe, Inc. v. United
    Shoe Mach. Corp., 
    392 U.S. 481
    , 494 (1968). To maintain
    consistency, the Court held in Illinois Brick that direct
    purchasers are the only parties “injured” in a manner that
    permits them to recover damages. 
    431 U.S. at 729, 735
    . The
    indirect purchaser plaintiffs were thus ineligible to recover
    damages for the passed-on overcharges.
    The Court gave three policy reasons for its holding: (1)
    a risk of duplicative liability for defendants and potentially
    inconsistent adjudications could arise if courts permitted both
    direct and indirect purchasers to sue defendants for the same
    overcharge; (2) the evidentiary complexities and uncertainties
    involved in ascertaining the portion of the overcharge that the
    direct purchasers had passed on to the various levels of indirect
    purchasers would place too great a burden on the courts; and (3)
    permitting direct and indirect purchasers to sue only for the
    amount of the overcharge they themselves absorbed and did not
    pass on would cause inefficient enforcement of the antitrust
    laws by diluting the ultimate recovery and thus decreasing the
    direct purchasers’ incentive to sue. 
    Id.
     at 730-35 & n.11, n.12,
    737 & n.18, 740-43 & n.23, n.27, 745.
    I.     May Plaintiffs recover damages in Hess?
    14
    a.     May Plaintiffs recover damages in Hess
    under a co-conspirator exception to
    Illinois Brick?
    Although the Hess complaint alleged that Dentsply’s
    dealers conspired with Dentsply by agreeing to the exclusive-
    dealing arrangements, Plaintiffs did not name any of the dealers
    as co-defendants. We have rejected attempts to invoke a co-
    conspirator exception to Illinois Brick’s bar on indirect
    purchaser standing when plaintiffs have not named the co-
    conspirators immediately upstream as defendants.            See
    McCarthy v. Recordex Serv., Inc., 
    80 F.3d 842
    , 854 (3d Cir.
    1996); Link v. Mercedes-Benz, 
    788 F.2d 918
    , 933 (3d Cir.
    1986).
    In Link, for example, Mercedes car owners sued
    Mercedes-Benz for allegedly requiring dealers to purchase parts
    exclusively from it. 
    788 F.2d at 929
    . Plaintiffs had purchased
    parts from the dealers, whom they named as co-conspirators but
    not as defendants. Plaintiffs claimed that Illinois Brick did not
    bar their vertical conspiracy claims because “the intervening
    parties in the distribution process [were] co-conspirators.” 
    Id. at 931
    .
    We concluded that, unless the dealers were joined as
    parties, plaintiffs’ suit implicated the policy concerns of Illinois
    Brick and was barred. We explained that if a jury found that
    Mercedes and its dealers were co-conspirators, but the dealers
    15
    were not parties to the suit, that determination would not have
    any collateral estoppel effect in a subsequent suit by a dealer
    against Mercedes. 
    Id. at 932
    . Therefore, because the dealers
    were not named as defendants, the risk of duplicative liability
    identified in Illinois Brick remained. Similarly in Hess, because
    the dealers may also sue Dentsply, the risk of duplicative
    liability looms.
    Plaintiffs attempt to distinguish Hess from Link by
    pointing to stipulations they entered into with most of
    Dentsply’s dealers. As part of Plaintiffs’ opposition to
    Dentsply’s motion for summary judgment in Hess, they executed
    stipulations with twenty-two of Dentsply’s dealers. In each
    stipulation, the dealer agrees “to release [Dentsply] from any
    and all claims for antitrust violations” set forth in the complaints
    in Hess or United States v. Dentsply (the Government’s suit
    against Dentsply), and Plaintiffs agree to “refrain[] from filing
    suit” against that dealer for the same antitrust violations. The
    parties to each stipulation agree that “Dentsply is a third party
    beneficiary of this stipulation” and that the stipulation “may be
    specifically enforced by the parties hereto or by Dentsply.”
    Plaintiffs’ expert calculated that the group of dealers who
    executed these stipulations “represents approximately 95% of
    the gross sales” of Dentsply’s artificial teeth. Plaintiffs argue
    that the stipulations give Dentsply a safe harbor from dealer
    suits, thus eliminating the risk of duplicative liability.
    Many problems attend Plaintiffs’ argument. First, while
    16
    in the stipulations Plaintiffs expressly agree not to sue the
    dealers, they did sue the dealers in Jersey Dental. Thus, the
    stipulations are likely unenforceable by Plaintiffs or Dentsply.4
    Furthermore, in Kansas v. Utilicorp United, Inc., 
    497 U.S. 199
     (1990), the Supreme Court rejected the assertion that
    the absence of a particular Illinois Brick concern in an individual
    case would remove its bar on an indirect purchaser claim. 
    497 U.S. at 217
    . “[E]ven assuming that any economic assumptions
    underlying the Illinois Brick rule might be disproved in a
    specific case, we think it an unwarranted and counterproductive
    exercise to litigate a series of exceptions.” 
    Id.
     Thus, Plaintiffs
    would not necessarily have standing even if the stipulations did
    eliminate Illinois Brick’s duplicative liability concern.
    In addition, in Merican the indirect purchasers argued
    4
    Even if Plaintiffs had not sued the dealers, Dentsply may
    not be able to enforce the stipulations in any event. The
    stipulations state that “Dentsply is a third party beneficiary of
    this stipulation” and that the stipulations “may be specifically
    enforced by the parties hereto or by Dentsply.” However, “only
    intended beneficiaries of a contract made between two or more
    other parties have enforceable rights under the contract.” 13
    Williston on Contracts § 37:8, at 67 (Richard A. Lord ed., 4th
    ed. 2000) (citing Restatement (Second) of Contracts § 302). In
    this case, the contracting parties arguably did not intend that
    Dentsply benefit from the stipulations, as their purpose was to
    allow Plaintiffs to sue Dentsply.
    17
    that there was no danger of duplicative recovery because the
    direct purchaser had executed an affidavit that said it had not
    suffered injury from the policy that was alleged to violate the
    antitrust laws. 
    713 F.2d at 968
    . We nevertheless held that
    plaintiffs were barred from seeking damages under Illinois
    Brick, recognizing the remaining potential of a direct purchaser
    suit. 
    Id. at 968-69
    ; see also Dickson v. Microsoft Corp., 
    309 F.3d 193
    , 215 (4th Cir. 2002) (applying Illinois Brick despite
    argument that “there is no danger of duplicative recovery
    because the [direct purchasers] apparently have elected not to
    sue [the defendant].” (internal quotation marks omitted)).
    As our Court has expressly refused to adopt a co-
    conspirator exception to Illinois Brick absent the joinder as
    defendants of the alleged co-conspirators immediately upstream,
    Plaintiffs in Hess lack standing to pursue claims for monetary
    relief. Before the applicability of that exception may be
    considered, the dealers must be joined.
    b.      May Plaintiffs recover damages in Hess
    under the control exception to Illinois
    Brick?
    The “control exception” to Illinois Brick “might” permit
    an indirect purchaser to sue an initial seller when the initial
    seller “own[s] or control[s]” the direct purchaser. Illinois Brick,
    
    431 U.S. at
    736 n.16. In Hess, Plaintiffs argued that they come
    within this exception because “Dentsply exerts virtual control
    18
    over its . . . dealers.” Dist. Ct. Mem. Op. at 30 (March 30,
    2001).
    We have applied the control exception only when the
    initial seller owned the direct purchaser. See In re Sugar Indus.
    Antitrust Litig., 
    579 F.2d 13
    , 18-19 & n.8 (3d Cir. 1978)
    (holding that, in certain circumstances, the “first noncontrolled
    purchaser” has standing to sue when it has purchased from a
    subsidiary of the violator); see also Mid-West-Paper Prods. Co.,
    v. Continental Group, Inc., 
    596 F.2d 573
    , 589 (3d Cir. 1979)
    (indicating that control exception may apply “when the parent
    dominates and controls the subsidiary to such an extent that the
    subsidiary is deemed to be an agent of the parent.”). But
    Dentsply does not own any interest in its dealers.
    Courts that have extended the control exception beyond
    a parent-subsidiary relationship still require “relationships
    involving such functional economic or other unity between the
    direct purchaser and either the defendant or the indirect
    purchaser that there effectively has been only one sale.” Jewish
    Hosp. Ass’n v. Stewart Mech. Enter., 
    628 F.2d 971
    , 975 (6th Cir.
    1980); see also Fisher v. Wattles, 
    639 F. Supp. 7
    , 9 (M.D. Pa.
    1985) (to fall within the control exception, plaintiffs must show
    “such significant control” that the two companies are “virtually
    the same entity”). Modes of control that might qualify for the
    control exception include “interlocking directorates, minority
    stock ownership, loan agreements that subject the wholesalers
    to the manufacturers’ operating control, [or] trust agreements.”
    19
    In re Brand Name Prescription Drugs Antitrust Litig., 
    123 F.3d 599
    , 605 (7th Cir. 1997) (Posner, J.). Plaintiffs in Hess,
    however, do not allege that Dentsply exerts any of these modes
    of control over its dealers.
    Furthermore, even assuming that Dentsply does exert
    some degree of control over its dealers, Illinois Brick’s policy
    reasons for denying standing remain. Nothing about Dentsply’s
    “control” over its dealers would prevent the dealers from suing
    Dentsply, thus creating a risk of duplicative liability for
    Dentsply and potentially inconsistent judgments. Also, if
    Plaintiffs wanted to recover overcharge damages, they would
    still have to demonstrate the portion of the overcharge dealers
    had passed on to them, leaving intact the evidentiary
    complexities and uncertainties of concern in Illinois Brick.
    Moreover, permitting Plaintiffs to sue for damages would
    potentially lead to inefficient enforcement of the antitrust laws,
    because the ultimate recovery for the dealers would be diluted
    (assuming that, rather than the dealers being permitted to
    recover the entire overcharge, it was apportioned among the
    dealers and the labs), thereby decreasing the dealers’ incentive
    to sue.
    In sum, Plaintiffs do not come within the control
    exception because Dentsply does not own any interest in its
    dealers and no functional unity exists among them and Dentsply.
    Notwithstanding whatever lesser degree of control Dentsply may
    exert over its dealers, Illinois Brick’s policy reasons for denying
    20
    standing apply.
    c.      May Plaintiffs recover non-overcharge
    damages in Hess?
    In their opposition to summary judgment in Hess,
    Plaintiffs argued that, even if Illinois Brick barred them from
    proving overcharge damages, they might still be able to present
    a non-overcharge theory of damages after further discovery.
    The District Court rejected this claim “[b]ecause the Hess
    plaintiffs have failed to articulate any theory of damages that
    would be anything other than overcharges.” Dist. Ct. Mem. Op.
    at 31 (March 30, 2001). We agree, and thus Plaintiffs’ claim
    was properly dismissed at summary judgment.
    d.      May Plaintiffs recover damages based
    on drop shipments in Hess?
    Plaintiffs in Hess claimed that, for teeth drop shipped
    directly from Dentsply to the labs, they were direct purchasers
    not subject to Illinois Brick. However, the Hess complaint
    limited the plaintiff class to “all dental laboratory purchasers of
    any Dentsply products who purchased such products through
    Dentsply Dealers.” (emphasis added). Plaintiffs cannot avoid
    Illinois Brick by claiming they were direct purchasers of drop
    shipments when their complaint specifically alleges that they did
    not directly purchase from Dentsply.
    21
    Furthermore, the fact that some of the teeth are drop
    shipped directly from Dentsply to Plaintiffs does not affect the
    economic substance of the transaction. That is, the dealers still
    make the sale to Plaintiffs and Dentsply makes the sale to the
    dealers. Plaintiffs pay the dealers their usual price, the dealers
    take their profit, and then the dealers pay Dentsply. See Dist. Ct.
    Mem. Op. at 29 (March 30, 2001). While it is true that the
    dealers do not take physical possession of the teeth, this is
    nothing but a formal difference from the typical transactions.
    Thus, even as to teeth drop shipped directly from Dentsply to the
    labs, Plaintiffs are indirect purchasers potentially subject to
    Illinois Brick.
    II.    May Plaintiffs recover damages in Jersey
    Dental?
    a.      May Plaintiffs recover lost profits
    d am ag es cau sed b y their lost
    opportunities to purchase and resell
    Dentsply’s competitors’ products?
    Plaintiffs argue that, even if they do not have standing to
    recover damages for overcharges they paid to dealers for
    Dentsply’s teeth, they have standing to recover lost profits
    damages caused by their lost opportunities to purchase and resell
    22
    products of Dentsply’s competitors.5 Plaintiffs allege that, as a
    result of Dentsply’s exclusive-dealing, its competitors are denied
    adequate access to a necessary means of distribution—the
    dealers. Thus Dentsply’s competitors’ products are not
    available. Plaintiffs are theoretically correct that, “but for
    [Dentsply’s] exclusion of more efficient rivals, purchasers
    would have shifted at least some of their business to the rivals.”
    ABA Section of Antitrust Law, Proving Antitrust Damages:
    Legal and Economic Issues 194 (1996).
    When antitrust violators cause prices to increase through
    monopolization, a price-fixing conspiracy, or exclusionary
    conduct, the harm they cause members of the distribution chain
    comes in two ways: (1) overcharges paid for goods actually
    purchased;6 and (2) lost profits resulting from the lost
    5
    If Dentsply’s exclusionary conduct enabled it to raise its
    prices, thereby reducing (at least in theory) the demand for its
    own products, Plaintiffs might also have claimed lost profits
    damages caused by their lost opportunities to purchase and resell
    Dentsply’s products. However, we would reject such a claim for
    the same reasons we reject Plaintiffs’ claim for lost profits
    damages caused by their lost opportunities to purchase and resell
    Dentsply’s competitors’ products.
    6
    Members of the distribution chain usually mitigate this
    harm by passing on some of the overcharge to their buyers.
    However, much of this harm is not actually avoided, but rather
    takes the form of the second type of harm—lost profits from the
    23
    opportunity to buy and resell a greater volume of goods. Jeffrey
    L. Harrison, The Lost Profits Measure of Damages in Price
    Enhancement Cases, 
    64 Minn. L. Rev. 751
    , 753, 770-772 (1980)
    (“[T]he gross overcharge measure [of damages] ignores the
    impact that the enhanced price has had on the volume of the
    final good eventually produced.”); see also ABA Section of
    Antitrust Law, 
    supra, at 195
     (“It is the fundamental law of
    demand that as the price of a product increases the amount
    purchased decreases. A collusive price increase, therefore, will
    result in a reduction of the quantity of the good purchased.”).
    Thus, as some scholars see it, when antitrust plaintiffs
    lost opportunity to buy and resell a greater volume of goods.
    This is because, as members of the distribution chain pass on the
    overcharge (i.e., raise their prices), their volume of sales
    theoretically decreases.
    Like the second type of harm, the overcharge paid minus
    the overcharge passed on for goods actually purchased and
    resold are a form of “lost profits.” The overcharge paid minus
    the overcharge passed on for goods actually purchased and
    resold is one component of the loss an antitrust violation causes
    to the bottom line (i.e., the profits) of members of the
    distribution chain. However, because Illinois Brick precludes
    indirect purchasers from recovering overcharge damages,
    Plaintiffs do not seek in their lost profits claim the component
    of their lost profits that includes the overcharge paid minus the
    overcharge passed on for teeth they actually purchased and
    resold.
    24
    claim that anticompetitive behavior caused prices to increase,
    two measures of damages could theoretically be used: (1) the
    overcharge (i.e., the difference between the price paid for goods
    actually purchased and the price that would have been paid
    absent the illegal conduct), or (2) lost profits (i.e., the
    overcharge paid minus the overcharge passed on for goods
    actually purchased and resold, plus lost profits from the lost
    opportunity to buy and resell a greater volume of goods). See
    Phillip E. Areeda, Herbert Hovenkamp & Roger D. Blair,
    Antitrust Law ¶ 394, at 521 (2d ed. 2000).7
    A court might potentially use a lost profits measure of
    damages, as “[t]he Supreme Court has not explicitly held that
    any particular measure of damages is required or precluded.”
    ABA Section of Antitrust Law, 
    supra,
     at 184 (citing Thomsen
    v. Cayser, 
    243 U.S. 66
     (1917)); see also Illinois Brick, 
    431 U.S. at
    733 n.13, 743 n.27 (observing that even if the “pass-on
    [defense] were permitted . . . [and] the defendant show[ed] that
    as a result of the overcharge the direct purchaser increased its
    price by the full amount of the overcharge, the direct purchaser
    m[ight] still claim injury from a reduction in the volume of its
    sales caused by its higher prices”).
    7
    We note that Professor Areeda, who gained recognition
    for his scholarly work in antitrust law, is deceased, and that the
    treatise is now the responsibility principally of Professor
    Hovenkamp.
    25
    However, the standard method of measuring damages in
    price enhancement cases is overcharge, not lost profits. See
    ABA Section of Antitrust Law, 
    supra, at 172
     (“The typical
    measure of damages is the difference between the actual price
    and the presumed competitive price multiplied by the quantity
    purchased. This was the calculation that the Supreme Court
    approved in Chattanooga Foundry [& Pipe Works v. Atlanta,
    
    203 U.S. 390
    , 396 (1906)].”); id. at 193-94 (Where “a group of
    suppliers conspires to drive a more efficient competitor out of
    the market or, equivalently, prevent a more efficient supplier
    from entering the market,” the excluded supplier (competitor)
    “would have a claim for antitrust damages based on lost profits”
    and “purchasers from the conspirators would also have antitrust
    claims because they pay higher prices as a result of the
    exclusionary practice.” The purchasers’ damages would be
    based on the overcharge they paid measured by “the difference
    between the price actually paid and the price that would have
    been paid absent collusion, multiplied by the quantity.”);
    Areeda, supra, ¶ 394b, at 529 (observing that “[i]n spite of the
    (arguably) theoretical superiority of lost profits as a measure of
    damages in a price-enhancement case, nearly all plaintiffs claim
    damages on the basis of an overcharge calculation”); Harrison,
    supra, at 755-56 (“[W]hen the specific activity at issue [is] price
    enhancement, courts consistently allow[] recoveries based on the
    gross overcharge instead of lost profits.” (footnote omitted)).
    Lost profits damages are disfavored, at least in part
    because they are more difficult to prove than overcharge
    26
    damages. See ABA Section of Antitrust Law, 
    supra, at 171
    (“The overcharge measure has the virtues of conceptual
    simplicity . . . and relative ease of calculation.”); Roger D. Blair
    & William H. Page, “Speculative” Antitrust Damages, 
    70 Wash. L. Rev. 423
    , 433-34 (1995) (“Overcharge damages . . . were
    recognized by the Supreme Court [in Chattanooga Foundry]
    primarily because of the difficulty of proving lost profits in
    price-fixing cases. Rather than require the complex netting
    associated with lost profits, and thus practically deny recovery,
    the Court permitted plaintiffs to prove damages by showing a
    price enhancement.”); Harrison, supra, at 756 (“The advantage
    to plaintiffs of using a gross overcharge measure is that it is less
    speculative and therefore easier to prove than lost profits.”).
    Furthermore, overcharge damages, unlike lost profits,
    may induce antitrust plaintiffs to make arguments that will
    protect rather than injure consumers. See Frank H. Easterbrook,
    Treble What?, 55 Antitrust L.J. 95, 96-97, 100-01 (1986). Judge
    Easterbrook argues that the overcharge to consumers, not lost
    profits, “should be the basis of all [antitrust] damages.” Id. at
    101. He reasons that
    [t]he lure of damages for lost profits induces firms
    to make arguments that will injure rather than
    protect consumers. Profits get lost primarily from
    hard competition or from the elimination of
    monopoly. . . . The more competitive the market,
    the more profits are ‘lost.’ . . . [Because] it is hard
    27
    to tell competition apart from exclusion, [] we
    must be wary of remedies that give the victims of
    hard competition a strong incentive to sue.
    Id. at 100-01.
    But most importantly, Plaintiffs may not recover lost
    profits damages because they are indirect purchasers. The
    District Court concluded that “[t]he intermediate dental dealers
    suffer the direct harm from any lost opportunity to sell a greater
    volume of Dentsply products or to sell competitive product lines
    and profit therefrom. Any harm suffered by plaintiffs remains
    indirect.” Dist Ct. Mem. Op. at 24 n.9 (Dec. 19, 2001). We
    agree.
    Even commentators who advocate for indirect purchaser
    standing and a lost profits measure of damages admit that their
    position is currently precluded by Supreme Court case law. As
    Professor Harrison concedes in his article arguing for indirect
    purchaser standing and a lost profits measure of damages, “[t]he
    Illinois Brick decision seems absolutely to foreclose the
    possibility of indirect-purchaser standing in price enhancement
    suits,” even if the indirect purchaser plaintiffs seek lost profits
    as opposed to overcharge damages. See Harrison, supra, at 777;
    see also Illinois Brick, 
    431 U.S. at 746
     (“[I]n elevating direct
    purchasers to a preferred position as private attorneys general,
    [our case law] denies recovery to those indirect purchasers who
    may have been actually injured by antitrust violations.”).
    28
    Harrison also acknowledges that
    the legal precedents and policy arguments relied
    on by the [Hanover Shoe] Court in rejecting the
    pass-on defense do not support even the
    theoretical appropriateness of the lost profits
    measure. In addition, the Court hinted that it was
    actually rejecting the very notion that damages
    should be apportioned among various layers of
    buyers and sellers. . . . [T]o the extent that the
    apportionment process has been rejected by the
    Court, it would be inappropriate to infer that the
    lost profits measure has received even implicit
    approval.
    
    Id. at 764-65
     (footnotes omitted) (citing Hanover Shoe, 
    392 U.S. at
    489-90 & n.8, 494, 498). Similarly, while Professors Areeda,
    Hovenkamp and Blair argue that “the correct solution is to
    permit damages actions based on lost profits to all
    intermediaries,” they concede that their position “is at variance
    with the case law.” Areeda, supra, ¶ 346a, at 359-60. Finally,
    the ABA’s Antitrust Section recognizes that “if a cartel sells to
    an intermediate purchaser who resells to another, both
    purchasers are likely to lose profits as a result of the price fix,”
    but concedes that “[u]nder the Illinois Brick rule, the second
    intermediate purchaser, or the indirect purchaser from the cartel,
    cannot recover damages.” ABA Section of Antitrust Law,
    supra, at 183-84.
    29
    If we were to hold that indirect purchaser plaintiffs could
    recover lost profits from their decreased volume of purchases
    and resales, we would be implying that (1) past indirect
    purchaser plaintiffs who have been denied standing based on
    Illinois Brick could have recovered if only they had framed their
    claim as one for lost profits rather than for overcharge damages,
    and (2) that the Illinois Brick Court—which was concerned with
    simplifying and controlling the costs of antitrust litigation and
    with conserving judicial resources—really meant that indirect
    purchasers do have standing to sue, but for lost profits rather
    than overcharge damages. We find both of these propositions
    untenable.
    For all of these reasons, we hold that Plaintiffs do not
    have statutory standing to recover lost profits damages caused
    by their lost opportunities to purchase and resell Dentsply’s
    competitors’ products.
    b.      May Plaintiffs recover damages caused
    by the alleged retail price-fixing
    conspiracy in Jersey Dental under a co-
    conspirator exception to Illinois Brick?
    In Jersey Dental, Plaintiffs claim that they come within
    the “co-conspirator exception” to Illinois Brick because their
    purchases from Dentsply’s dealers were made from members of
    a retail price-fixing conspiracy. Other circuit courts have
    adopted a co-conspirator exception to Illinois Brick that applies
    30
    in retail price-fixing cases. See Arizona v. Shamrock Foods Co.,
    
    729 F.2d 1208
    , 1211-12 (9th Cir. 1984) (holding that purchasers
    from down-stream conspirators may sue up-stream conspirators
    for damages and noting that “[n]umerous other courts have
    found Illinois Brick inapplicable to claims against remote sellers
    when the plaintiffs allege that the sellers conspired with
    intermediates in the distribution chain to fix the price at which
    the plaintiffs purchased”); Paper Sys. Inc. v. Nippon Paper
    Indus. Co., 
    281 F.3d 629
    , 631-32 (7th Cir. 2002) (Easterbrook,
    J.) (holding that Illinois Brick does not bar suits for damages by
    plaintiffs against an initial seller when it is alleged to have
    conspired in violation of the antitrust laws with the seller
    directly upstream from plaintiffs); Prescription Drugs, 
    123 F.3d at 604
     (same); see also Fontana Aviation, Inc. v. Cessna Aircraft
    Co., 
    617 F.2d 478
    , 481 (7th Cir. 1980) (approving co-conpirator
    exception in dicta).
    Our Court has not explicitly adopted a co-conspirator
    exception to Illinois Brick. In McCarthy, we neither adopted
    nor rejected the exception because it was inapplicable to the
    case, but we did explain its “nature”: “In order to fall within the
    exception, plaintiffs here would have to allege that the
    intermediaries immediately upstream . . . colluded with the
    defendants to overcharge plaintiffs . . . . Moreover, plaintiffs
    would be obliged to join the [intermediaries] as defendants . . .
    .” 
    80 F.3d at 855
     (emphasis omitted). In our case, Plaintiffs
    allege that they made purchases from Dentsply’s dealers (the
    intermediaries immediately upstream from Plaintiffs) and that
    31
    Dentsply and its dealers are co-conspirators. In addition, in
    Jersey Dental Plaintiffs sued not only Dentsply, but also joined
    as defendants twenty-six of Dentsply’s then twenty-eight
    authorized dealers.8       Thus, under McCarthy, Plaintiffs
    potentially qualify for the co-conspirator exception.
    Furthermore, Professors Areeda, Hovenkamp, and Blair
    approve of the co-conspirator exception. They explain that
    Illinois Brick does not limit suits by consumers
    against a manufacturer who illegally contracted
    with its dealers to set the latter’s resale price. . . .
    There is no problem of duplication or
    apportionment, because the consumer is the only
    party who has paid any overcharge. . . . The court
    simply computes the retail price that would have
    prevailed absent the illegal contract fixing the
    price. Further emphasizing that Illinois Brick
    does not apply is that a dealer challenging resale
    price maintenance imposed upon itself would not
    base its damages on an “overcharge” at all. Its
    8
    Plaintiffs may not recover from Dentsply for teeth
    purchased from the two non-joined dealers under a co-
    conspirator exception to Illinois Brick because, as previously
    mentioned, our Court has expressly refused to adopt a co-
    conspirator exception when the alleged co-conspirators
    immediately upstream have not been joined.
    32
    action is not based on a higher product price to
    itself, but rather on the constraint on its resale
    price; its damages would be for lost profits
    resulting from the reduced volume of sales. As
    that case illustrates, lost profits damages for the
    intermediary and overcharge damages for the
    consumer are not in any way duplicative; they are
    both losses caused by the unlawful resale price
    maintenance.
    Areeda, supra, ¶ 346h, at 369-70.
    In fact, a recent supplement to their treatise analyzed
    Jersey Dental and concluded that the District Court “incorrectly
    refus[ed] to apply a co-conspirator exception to Illinois Brick .
    . . .” Areeda, supra, ¶ 346a, at 88 n.1 (2003 Supp.). It reasoned
    that, to the extent that Dentsply imposed resale price
    maintenance 9 on its dealers, they
    might have their own damage action against the
    supplier, but if so, it would be an action for lost
    profits, not for an overcharge; the dealer’s injury
    9
    “Resale price maintenance”—the term used by Areeda,
    et al.—is simply another way of describing the vertical price
    fixing in which Plaintiffs allege Dentsply and its dealers
    engaged. In resale price maintenance, the initial seller dictates
    the dealers’ resale price.
    33
    would accrue from the profits lost by . . . lost
    output resulting from being required to sell at the
    maintained price; as a result, there was nothing to
    pass on . . . .
    Id.10
    Not only are overcharge pass-on calculations not a
    concern, the other two Illinois Brick policy justifications are also
    inapplicable to Plaintiffs’ price-fixing conspiracy claim. First,
    there is no risk of duplicative liability or potentially inconsistent
    judgments because Plaintiffs and Dentsply’s dealers would not
    be suing for the same injury. To the extent that Dentsply
    imposed resale price maintenance on the dealers, the dealers’
    claim against Dentsply would be for lost profits, not for an
    overcharge.11 Lost profits would be caused by lost output,
    10
    In fact, Areeda implies that even the alleged exclusive-
    dealing could not have caused the dealers to be overcharged.
    Areeda, supra, ¶ 346a, at 88 n.1 (2003 Supp.). This appears to
    be incorrect, for if the exclusive-dealing led to exclusion of
    Dentsply’s competitors, Dentsply may have been able to
    overcharge its dealers.
    11
    We are, of course, not saying that the dealers could
    prevail on any particular claim. Rather, we merely point out that
    if the dealers proved that Dentsply imposed resale price
    maintenance on them, their measure of damages would be based
    on the lost profits from their decreased volume of purchases and
    34
    which in turn is caused by resale price maintenance. Areeda,
    supra, ¶ 346a, at 88 n.1 (2003 Supp.). Second, permitting
    Plaintiffs to sue would not cause inefficient enforcement of the
    antitrust laws by diluting the ultimate recovery and thus
    decreasing direct purchasers’ incentive to sue. Dealers would
    still recover the same amount on their hypothetical lost profits
    claim even if Plaintiffs recovered on their separate price-fixing
    claim.
    Finally, we have found no precedent holding that
    plaintiffs, who purchase from dealers who are part of a price-
    fixing conspiracy with the initial seller, may not recover
    damages from the initial seller.
    In this context, we hold that Plaintiffs in Jersey Dental
    have statutory standing to recover damages from Dentsply for its
    alleged price-fixing conspiracy with its dealers.
    c.     May Plaintiffs recover damages caused
    by the alleged exclusive-dealing
    conspiracy in Jersey Dental under a co-
    conspirator exception to Illinois Brick?
    In Jersey Dental, Plaintiffs also claim that they come
    resales. This lost profits harm is different from, and thus not
    duplicative of, the overcharge harm that any resale price
    maintenance would have caused Plaintiffs.
    35
    within the “co-conspirator exception” to Illinois Brick because
    their purchases from Dentsply’s dealers were made from
    members of an exclusive-dealing conspiracy. Thus, we must
    decide whether there is—in addition to a co-conspirator
    exception for RPM (resale price maintenence, i.e., vertical price-
    fixing) conspiracies—a co-conspirator exception for non-RPM
    conspiracies, such as exclusive-dealing or price-fixing at the
    manufacturer level (“the general co-conspirator exception”).12
    12
    We recognize that one might ask why would it not
    always be unprofitable for a direct purchaser to join such a non-
    RPM conspiracy and effectively agree to be overcharged (as
    input costs increase, profits decrease). Further, if economics
    predicts that such overcharge conspiracies will never arise, why
    consider adopting an exception for them?
    As an initial matter, because Jersey Dental is at the
    Federal Rule of Civil Procedure 12(b)(6) stage, we must take as
    true Plaintiffs’ allegations that Dentsply and its dealers have
    conspired to fix, and have fixed, the prices that dealers charge
    Plaintiffs and that there was an exclusive-dealing conspiracy
    between Dentsply and its dealers to exclude Dentsply’s
    competitors. We may not dismiss Plaintiffs’ claims because we
    determine the alleged facts likely did not occur.
    In fact, however, we can imagine how the exclusive-
    dealing conspiracy, in combination with the RPM conspiracy,
    could have been profitable to the dealers. As previously
    mentioned, it would presumably not have been profitable for the
    dealers to have joined a conspiracy in which they were
    overcharged (the exclusive-dealing conspiracy). However, the
    36
    dealers might have joined such a conspiracy if they were
    compensated in some fashion. Plaintiffs argue that Dentsply
    conspired to fix the prices that its dealers charge. This is
    effectively a horizontal price fixing conspiracy at the dealer
    level (which could presumably be profitable to the dealers) that
    is policed by Dentsply. Thus, the RPM conspiracy could be the
    mechanism by which Dentsply compensates its dealers in
    exchange for the dealers’ agreement (1) not to deal with
    Dentsply’s competitors and (2) thus to be overcharged by
    Dentsply.
    In addition, in Prescription Drugs Judge Posner rejected
    a similar argument that it would not have made sense
    economically for the wholesalers in that case to have joined
    what was arguably a horizontal price-fixing conspiracy at the
    manufacturer level. 
    123 F.3d at 614
    . He explained that “[t]he
    theory is that the wholesalers were the manufacturers’ cats-
    paws. There is nothing new about the idea that a cartel might
    ‘hire’ a customer to help police the cartel.” 
    Id.
     He also implied
    that, because drug wholesalers appeared to be “an endangered
    commercial species” and the manufacturers could have cut them
    out altogether and sold directly to buying groups for pharmacies,
    it was in the wholesalers’ self-interest to join the conspiracy. 
    Id.
    Finally, “summary judgment for a defendant is proper,
    even if there is some evidence of an antitrust violation, if
    plaintiff’s theory of violation makes no economic sense.”
    Prescription Drugs, 
    123 F.3d at
    614 (citing Matsushita Electric
    Industrial Co. v. Zenith Radio Corp., 
    475 U.S. 574
    , 587 (1986);
    Eastman Kodak Co. v. Image Technical Services, Inc., 
    504 U.S. 37
    We hold that such an exception would only exist in
    circumstances where the middlemen would be barred from
    bringing a claim against their former co-conspirator—the
    manufacturer—because their involvement in the conspiracy was
    “truly complete” (i.e., if the middlemen would be barred from
    suing by the “complete involvement defense” of a
    manufacturer). See Perma Life Mufflers, Inc. v. Int’l Parts
    Corp., 
    392 U.S. 134
    , 140 (1968) (expressly “not decid[ing] . . .
    whether . . . truly complete involvement and participation in a
    monopolistic scheme could ever be a basis . . . for barring a
    plaintiff’s cause of action”).
    1.     Why we adopt a “limited”
    general co-conspirator exception.
    If there is a general co-conspirator exception, why do we
    limit it? To begin, we examine whether Illinois Brick’s policy
    justifications suggest we should adopt (1) a general co-
    conspirator exception that would permit indirect purchaser
    standing when the middlemen conspired with the manufacturers
    even if the middlemen were not barred by the complete
    involvement defense from suing their former co-
    conspirator—the manufacturer (the “unlimited exception”), or
    (2) an exception that would permit indirect purchaser standing
    451, 467-69 (1992)). Thus, there is already a mechanism in
    place for courts to dismiss before trial claims of a conspiracy
    that would make no economic sense.
    38
    only if the middlemen were barred by the complete involvement
    defense from suing the manufacturer (the “limited exception”).13
    Illinois Brick’s first policy concern—the risk of
    duplicative liability—cuts against the unlimited exception, but
    in favor of the limited exception. For example, imagine the
    dealers had already sued and recovered overcharges from
    Dentsply for the exclusive-dealing conspiracy. If there was an
    unlimited exception, presumably nothing would stop the labs
    from then suing Dentsply to recover the duplicative portion of
    the overcharge that the dealers had passed on to them. Even
    under the conditions of this case (with the labs suing first and
    the dealers joined), duplicative recovery is a possibility. If the
    labs prove Dentsply engaged in an exclusive-dealing conspiracy
    with the dealers, the dealers could potentially sue Dentsply for
    duplicative damages the conspiracy caused them. See Link, 788
    13
    The Seventh Circuit is the only Court of Appeals to
    engage head-on the general co-conspirator exception, and it has
    adopted it. See Paper Systems, 
    281 F.3d at 631-32
     (“The right
    to sue middlemen that joined the conspiracy is sometimes
    referred to as a co-conspirator ‘exception’ to Illinois Brick, but
    it would be better to recognize that Hanover Shoe and Illinois
    Brick allocate to the first non-conspirator in the distribution
    chain the right to collect 100% of the damages.”); Prescription
    Drugs,
    123 F.3d at 604
    ; Fontana Aviation, 
    617 F.2d at 481
    . However,
    we do not discern an explanation by the Court why it did so or an
    explicit delineation of the exception’s scope (i.e., whether it is
    unlimited or limited).
    39
    F.2d at 932 n.12 (analyzing an alleged conspiracy analogous to
    our case and noting that, even if the dealers were joined and
    were co-conspirators, they could still potentially sue the
    manufacturer for overcharges caused by the exclusive-dealing
    conspiracy). However, under the limited exception, the risk of
    duplicative liability is alleviated because that exception is only
    applicable if the middlemen are barred from recovery.
    Illinois Brick’s second policy concern—avoiding the
    need to ascertain the portion of an overcharge that was passed
    on—cuts against both exceptions. Unlike vertical conspiracies
    involving RPM, other vertical conspiracies are designed to
    distort the wholesale market for a particular good. For example,
    assume that Dentsply and its dealers only engaged in an
    exclusive-dealing conspiracy. The effect of that conspiracy
    would be to deny Dentsply’s competitors access to its authorized
    dealers. The absence of competition for these dealers’ business
    would allow Dentsply to charge its dealers a supra-competitive
    price at wholesale. This overcharge would then be passed on (at
    least in part) to the dealers’ customers, the dental laboratories.
    The damages that the laboratories could recover from Dentsply
    would thus be the treble portion of the overcharge that the
    dealers passed on to them.14 Thus both exceptions, which apply
    14
    Because Section 4 of the Clayton Act provides for
    damages of treble the amount a plaintiff is injured, presumably
    indirect purchaser plaintiffs would only be permitted to recover
    treble the amount of the manufacturer’s overcharge that the
    40
    direct purchasers passed on to them and would not be able to
    recover the portion of the manufacturer’s overcharge that the
    direct purchasers absorbed because the indirect purchasers
    would not have been injured by that portion. See 
    15 U.S.C. § 15
    (a) (Section 4 of the Clayton Act provides that “any person
    who shall be injured in his business or property by reason of
    anything forbidden in the antitrust laws . . . shall recover
    threefold the damages by him sustained.”) (emphasis added).
    But see Paper Systems, 
    281 F.3d at 631-32
     (“The right to sue
    middlemen that joined the conspiracy is sometimes referred to
    as a co-conspirator “exception” to Illinois Brick, but it would be
    better to recognize that Hanover Shoe and Illinois Brick allocate
    to the first non-conspirator in the distribution chain the right to
    collect 100% of the damages.”) (emphasis added); cf. Hanover
    Shoe, 392 U.S. at 494 (holding that an antitrust defendant could
    not argue that a plaintiff who had purchased a product directly
    from the defendant was not injured because it had passed on the
    illegal overcharge to its own customers, thus creating a regime
    under which plaintiffs can arguably recover more than
    “threefold the damages by him sustained”). Of course, if under
    the limited exception (where direct purchasers are barred from
    recovering) indirect purchaser plaintiffs were allowed to recover
    the entire overcharge that the manufacturers imposed on the
    direct purchasers (even though the direct purchasers absorbed
    some of that overcharge and did not pass on that absorbed
    portion to the indirect purchasers), then the portion of the
    overcharge that was passed on from the direct purchasers to the
    indirect purchasers would not need to be ascertained and Illinois
    Brick’s second policy justification would cut in favor of the
    41
    to conspiracies that attack the wholesale market, potentially
    create the problems of apportionment that underlie Illinois
    Brick.15
    Illinois Brick’s third policy concern—risk of inefficient
    enforcement of the antitrust laws because the ultimate recovery
    for the dealers would be diluted, thereby decreasing the dealers’
    incentive to sue—cuts against the unlimited exception, but in
    limited exception.
    15
    Technically speaking, there would be no need to
    “apportion” damages between direct and indirect purchasers
    under the limited exception. This is because, as we have
    explained, the limited exception would only permit indirect
    purchaser standing in circumstances where the direct purchaser
    would be barred from bringing suit against the manufacturer.
    As such, there would be no need to apportion any damages to
    the direct purchasing middleman.
    Nevertheless, even under the limited exception, the finder
    of fact would be required to ascertain the amount of the
    overcharge that had been passed on by the middleman. After
    all, an antitrust plaintiff (whether he be a direct or an indirect
    purchaser) is only entitled to recover “threefold the damages by
    him sustained.”       
    15 U.S.C. § 15
    (a) (emphasis added).
    Therefore, to the extent that the middleman retained (i.e. did not
    pass on to the indirect purchaser) a portion of any overcharge
    imposed upon him, the damages actually sustained by the
    indirect purchaser would be reduced by that amount.
    42
    favor of the limited exception. Under the unlimited exception,
    when middlemen were not completely involved, their recovery
    would be diluted and their incentive to sue would decrease
    (assuming that, rather than the middlemen being permitted to
    recover the entire overcharge, it was apportioned among the
    middlemen and the indirect purchasers). However, under the
    limited exception, when middlemen were not completely
    involved, their recovery would not be diluted and their incentive
    to sue would not decrease. As the indirect purchasers would not
    have standing in this instance, no recovery by them could dilute
    the middlemen’s recovery.
    Thus, all three of the Illinois Brick policy justifications
    argue against adopting the unlimited exception, while the first
    and the third favor adopting the limited exception and only the
    second (the desire to avoid ascertaining the portion of an
    overcharge that was passed on) cuts against it. Further, while it
    is true that adopting the limited exception creates the need to
    ascertain the portion of an overcharge that was passed on, we
    think the alternative, adopting no general co-conspirator
    exception, is less desirable. Cf. In re Lower Lake Erie Iron Ore
    Antitrust Litig., 
    998 F.2d 1144
    , 1169 (3d Cir. 1993) (“[W]hile
    complex apportionment problems are implicated here, we do
    not hold that litigation must be avoided solely because it might
    be difficult to ascertain damages. Injured parties cannot be
    penalized and left without recourse because measurement of
    their damages is difficult.”). The Illinois Brick Court was
    concerned with promoting “the longstanding policy of
    43
    encouraging vigorous private enforcement of the antitrust laws.”
    
    431 U.S. at 745
    . We are unwilling to hold that if initial sellers
    and “completely involved” direct purchasers conspire, then no
    plaintiff outside the conspiracy may sue the initial seller for
    damages.
    2.     Is    there   a    “complete
    involvement” defense?
    We hold that a general co-conspirator exception would
    only exist if the complete involvement defense barred the
    middlemen from bringing a claim against their former co-
    conspirator—the manufacturer. However, our Court has not
    decided where the complete involvement defense even exists.
    We thus examine this question.
    In Perma Life, the Supreme Court held that “the doctrine
    of in pari delicto . . . is not to be recognized as a defense to an
    antitrust action.” 392 U.S. at 140.16 But as previously
    mentioned, the Court expressly did “not decide . . . whether . .
    . truly complete involvement and participation in a monopolistic
    scheme could ever be a basis . . . for barring a plaintiff’s cause
    16
    The Court explained that “[a]lthough in pari delicto
    literally means ‘of equal fault,’ the doctrine has been applied .
    . . in a wide variety of situations in which a plaintiff seeking
    damages or equitable relief is himself involved in some of the
    same sort of wrong doing.” Perma Life, 392 U.S. at 138.
    44
    of action.” Id. Further, in concurrences, five members of the
    Perma Life Court favored barring suit by antitrust plaintiffs who
    were involved in a conspiracy at a high enough level.17
    Further, every Court of Appeals that has decided the
    issue has held that antitrust plaintiffs who were involved in a
    conspiracy at a requisite level are barred from suing. See, e.g.,
    Sullivan v. Tagliabue, 
    34 F.3d 1091
    , 1107 (1st Cir. 1994);
    Columbia Nitrogen Corp. v. Royster Co., 
    451 F.2d 3
    , 16 (4th
    Cir. 1971); Gen. Leaseways, Inc. v. Nat’l Truck Leasing Ass’n,
    
    830 F.2d 716
    , 720-23 (7th Cir. 1987); Javelin Corp. v. Uniroyal,
    Inc., 
    546 F.2d 276
    , 279 (9th Cir. 1976). But cf. Greene v. Gen.
    Foods Corp., 
    517 F.2d 635
    , 646-47 (1975) (“seriously
    question[ing]” whether antitrust plaintiffs should ever be barred
    17
    See Perma Life, 392 U.S. at 146 (White, J., concurring)
    (“I would deny recovery where plaintiff and defendant bear
    substantially equal responsibility for injury resulting to one of
    [the co-conspirators] . . . .”); id. at 147 (Fortas, J., concurring)
    (Suit should be barred when “the fault of the parties is
    reasonably within the same scale.”); id. at 149 (Marshall, J.,
    concurring) (“I would hold that where a defendant in a private
    antitrust suit can show that the plaintiff actively participated in
    the formation and implementation of an illegal scheme, and is
    substantially equally at fault, the plaintiff should be barred from
    imposing liability on the defendant.”); id. at 153 (Harlan, J.,
    concurring in part and dissenting in part) (Stewart, J., joining)
    (“[P]roperly used[, in pari delicto] refers to a defense that
    should be permitted in antitrust cases.”).
    45
    from suing because of their “unclean hands”). In Link, our
    Court recognized that co-conspirators who were completely
    involved in a conspiracy might be barred from suing. 
    788 F.2d at 932
    . However, we did not decide the issue because we
    concluded that the co-conspirators in that case were not
    completely involved in the conspiracy. 
    Id.
    We recognize that the weight of authority favors barring
    suit by antitrust plaintiffs who were involved in a conspiracy at
    a high enough level. We also recognize, however, the strong
    policy argument in favor of allowing suits by co-conspirators
    even when their involvement in a conspiracy was large. The
    Ninth Circuit has recognized that “[t]he formulation of the
    ‘complete involvement’ defense reflects a somewhat uneasy
    balance between the compelling policy of enforcement of the
    antitrust laws and the natural desire of any court to recognize the
    equities as between parties.” THI-Hawaii, Inc. v. First
    Commerce Fin. Corp., 
    627 F.2d 991
    , 995 (9th Cir. 1980). It is
    notable, however, that, while the courts who have adopted the
    c o m p le te in v o lv e m e nt def e n se h a v e s tru c k th e
    “enforcement/equities balance” in favor of equities, the Supreme
    Court in the holdings of Illinois Brick and Perma Life struck the
    balance in favor of enforcement.
    In Illinois Brick, the Court
    conclude[d] that the legislative purpose in
    creating a group of ‘private attorneys general’ to
    46
    enforce the antitrust laws under § 4 [of the
    Clayton Act] is better served by holding direct
    purchasers to be injured to the full extent of the
    overcharge paid by them than by attempting to
    apportion the overcharge among all that may have
    absorbed a part of it.
    
    431 U.S. at 746
     (citation and quotation marks omitted). Thus
    the Illinois Brick Court made the balancing decision to deny
    (some might argue inequitably18 ) injured indirect purchasers
    standing to recover while granting direct purchasers the windfall
    of the entire overcharge in order to further efficient antitrust law
    enforcement.
    In Perma Life, the Court believed that allowing the in
    pari delicto defense in an antitrust action would “threaten the
    effectiveness of the private action as a vital means for enforcing
    . . . antitrust policy.” 392 U.S. at 136. It noted that it had “often
    indicated the inappropriateness of invoking broad common-law
    18
    See Areeda, supra, ¶ 346k, at 378 (“The obvious
    difficulty with denying damages for consumers buying from an
    intermediary is that they are injured, often more than the
    intermediary, who may also be injured but for whom the entire
    overcharge is a windfall. The indirect purchaser rule awards
    greatly overcompensate interm ediaries and greatly
    undercompensate consumers in the name of efficiency in the
    administration of the antitrust laws.”).
    47
    barriers to relief where a private suit serves important public
    purposes.” Id. at 138. It concluded that
    [t]he plaintiff who reaps the reward of treble
    damages may be no less morally reprehensible
    than the defendant, but the law encourages his suit
    to further the overriding pubic policy in favor of
    competition. A more fastidious regard for the
    relative moral worth of the parties would only
    result in seriously undermining the usefulness of
    the private action as a bulwark of antitrust
    enforcement.
    Id. at 139 (emphases added). Thus, the Court chose to allow the
    inequity of letting plaintiffs, though as “morally reprehensible”
    as defendants, sue in order to foster antitrust law enforcement.
    We further point out that a rule prohibiting antitrust
    plaintiffs who were completely involved in a conspiracy to sue
    co-conspirators need not be absolute and could be crafted to
    maximize antitrust enforcement and cartel instability. For
    example, the law might allow the first, but only the first,
    completely involved co-conspirator the right to sue its fellow co-
    conspirators. This would give each co-conspirator incentive to
    be the first to defect from a cartel and enforce the antitrust laws
    because (1) each would want to be the one and only co-
    conspirator to gain the right to recover treble damages and (2)
    each would be afraid that if it did not defect, another would, and
    48
    it would then be liable for treble damages. Under such a rule,
    the incentive to defect and cartel instability would increase, and
    cartel breakdown and failure should become more common.
    Further, if potential co-conspirators knew their potential cartel
    had a decreased chance of succeeding, they would be less likely
    to form a cartel in the first place.
    Regardless, as we will explain, it turns out that we need
    not resolve whether there is a complete involvement defense to
    antitrust actions in order to determine whether Plaintiffs come
    within a general co-conspirator exception.
    3.     Could Plaintiffs come within a
    general co-conspirator
    exception?
    If there is a general co-conspirator exception, it would
    only apply if the middlemen were barred from bringing a claim
    against their former co-conspirator—the manufacturer—because
    their involvement in the conspiracy was “truly complete.”
    However, in our case, Plaintiffs could not qualify for such an
    exception because the District Court concluded, and Plaintiffs
    have conceded, that the dealers’ involvement in the alleged
    conspiracy with Dentsply was not “truly complete.” The District
    Court concluded that there was “no way to construe the facts
    alleged such that the dental dealers could be considered
    ‘substantially equal’ participants in the alleged conspiracy . . . or
    that their participation was ‘voluntary in any meaningful
    49
    sense.’” Dist Ct. Mem. Op. at 20-21 (Dec. 19, 2001) (citation
    omitted). Further, Plaintiffs acknowledged in their brief that
    they “have not based any part of [their] appeal on any argument
    that the dealers’ involvement was ‘substantially equal’ to
    Dentsply’s.” Appellants’ Reply Br. at 23 n.16. Thus, Plaintiffs
    may not recover damages caused by the exclusive-dealing
    conspiracy under a general co-conspirator exception to Illinois
    Brick.
    Conclusion
    We thus hold that Plaintiffs may not recover damages in
    Hess (a) under the “co-conspirator” exception to Illinois Brick,
    (b) under the “control” exception to Illinois Brick, (c) under a
    non-overcharge theory of damages, or (d) for “drop shipments.”
    In Jersey Dental, however, while Plaintiffs may not recover
    damages under the control exception or under a lost profits
    theory, they do have statutory standing under the co-conspirator
    exception to pursue an action for overcharge damages (including
    for drop shipped teeth) caused by the alleged retail price-fixing
    conspiracy, although not for the alleged exclusive-dealing
    conspiracy.19
    19
    Plaintiffs also allege in Jersey Dental that—as to teeth
    Dentsply drop shipped to them—they were direct purchasers not
    subject to Illinois Brick. Further, the Jersey Dental complaint
    does not have the Hess complaint’s defect, as it specifically
    alleges that Plaintiffs were direct purchasers. As we hold that
    50
    the Jersey Dental Plaintiffs have standing to recover damages
    from Dentsply for its alleged price-fixing conspiracy with its
    dealers under the co-conspirator exception to Illinois Brick,
    Plaintiffs may potentially recover on the drop-shipped teeth
    under that theory.
    Finally, as in Hess, Plaintiffs in Jersey Dental do not
    come within the control exception to Illinois Brick because, as
    already noted, Dentsply does not own any interest in its dealers,
    there is no functional unity among Dentsply and its dealers, and
    all of Illinois Brick’s policy reasons for denying standing apply.
    51