In Re Chocolate Confectionary Antitrust Litigation, 801 F.3d 383

Background

Plaintiffs (a certified class of direct purchasers and individual retailers) sued Hershey, Mars, and Nestlé USA alleging they conspired to fix U.S. chocolate prices via coordinated list-price increases in 2002, 2004, and 2007.
The Canadian subsidiaries (Hershey Canada, Mars Canada, Nestlé Canada, Cadbury Canada) were subject to a contemporaneous Canadian investigation; Hershey Canada pled guilty and paid a fine; other Canadian actors were indicted or investigated.
Plaintiffs relied heavily on the Canadian conspiracy evidence and expert economic testimony (including an "actuation" theory) to infer a U.S. conspiracy.
The District Court granted summary judgment to the Chocolate Manufacturers, finding the evidence consistent with lawful interdependence (conscious parallelism) and insufficient to infer an agreement.
On appeal, the Third Circuit affirmed, holding (1) the Canadian-conspiracy evidence was insufficiently linked to U.S. decisionmakers and circumstances to support an inference of a U.S. conspiracy, and (2) other plus-factor (traditional) evidence likewise failed to exclude independent action.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether contemporaneous Canadian conspiracy evidence supports an inference of a U.S. price-fixing conspiracy	Canadian and U.S. markets are adjacent with overlapping firms; Canadian collusion shows similar conduct and makes a U.S. conspiracy plausible (actuation theory)	Foreign wrongdoing alone is propensity evidence; plaintiffs must show strong linkage (same actors, knowledge, or communications) to infer a domestic conspiracy	The court held the Canadian evidence was ambiguous and insufficiently linked (different actors, different mechanisms, limited U.S. knowledge), so it cannot support an inference of a U.S. conspiracy
Whether plaintiffs showed defendants acted contrary to self-interest (a plus factor)	Economic experts conclude cost increases do not explain the price moves; defendants acted in ways inconsistent with competitive self-interest (e.g., following rivals despite cost advantage)	Evidence shows rising input costs, strategic incentives (line pricing, catching rivals by surprise), and rational oligopolistic interdependence	The court found some evidence inconsistent with competition but concluded it does not go beyond lawful interdependence and thus fails to infer an agreement
Whether possession of advance pricing information, opportunities to meet, or sporadic communications support conspiracy inference	Possession of advance competitor pricing and overlapping meetings/trade events show exchange of sensitive information and opportunity to conspire	Mere possession of competitor information, chance meetings, and sporadic low-level communications are consistent with lawful information-gathering and do not show an agreement	The court held these items are weak: closer to lawful competitive conduct (Baby Food) than the stronger, upper‑level coordinated communications in Flat Glass, so they do not establish a conspiracy
Whether defendants' cost-based explanations are pretextual and therefore probative of conspiracy	Public cost explanations were cover stories; evidence shows pretext because costs do not predict price increases	Rising input costs did exist and contemporaneous documents reflect cost concerns; pretext alone is insufficient to infer conspiracy	The court held pretext is weak here and, standing alone, inadequate; pretext must be accompanied by other traditional conspiracy evidence (which is lacking)

Key Cases Cited

Matsushita Elec. Indus. Co. v. Zenith Radio Corp., 475 U.S. 574 (Sup. Ct. 1986) (ambiguous parallel conduct that is consistent with lawful interdependence cannot by itself defeat summary judgment)
Monsanto Co. v. Spray‑Rite Serv. Corp., 465 U.S. 752 (Sup. Ct. 1984) (§1 requires proof of concerted action; unilateral action insufficient)
In re Flat Glass Antitrust Litig., 385 F.3d 350 (3d Cir. 2004) (identifies plus factors and distinguishes stronger evidence of upper‑level information exchanges supporting inference of conspiracy)
In re Baby Food Antitrust Litig., 166 F.3d 112 (3d Cir. 1999) (mere possession of competitor pricing memoranda and low‑level information does not imply conspiracy)
Petruzzi's IGA Supermarkets, Inc. v. Darling‑Del. Co., 998 F.2d 1224 (3d Cir. 1993) (examples of strong traditional evidence supporting conspiracy inference)
United States v. Socony‑Vacuum Oil Co., 310 U.S. 150 (Sup. Ct. 1940) (classic statement on per se illegality of horizontal price fixing)
InterVest, Inc. v. Bloomberg, L.P., 340 F.3d 144 (3d Cir. 2003) (plaintiff must prove conspiracy and proximate causation under §1)