`
`UNITED STATES COURT OF APPEALS
`FOR THE NINTH CIRCUIT
`
`No. 19-56514
`
`D.C. No.
`3:15-md-02670-
`DMS-MDD
`
`OPINION
`
`OLEAN WHOLESALE GROCERY
`COOPERATIVE, INC., BEVERLY
`YOUNGBLOOD, PACIFIC
`GROSERVICE, INC., DBA Pitco
`Foods, CAPITOL HILL
`SUPERMARKET, LOUISE ANN DAVIS
`MATTHEWS, JAMES WALNUM, COLIN
`MOORE, JENNIFER A. NELSON,
`ELIZABETH DAVIS-BERG, LAURA
`CHILDS; NANCY STILLER; BONNIE
`VANDERLAAN; KRISTIN MILLICAN;
`TREPCO IMPORTS AND
`DISTRIBUTION, LTD.; JINKYOUNG
`MOON; COREY NORRIS; CLARISSA
`SIMON; AMBER SARTORI; NIGEL
`WARREN; AMY JOSEPH; MICHAEL
`JUETTEN; CARLA LOWN; TRUYEN
`TON-VUONG, AKA David Ton; A-1
`DINER; DWAYNE KENNEDY; RICK
`MUSGRAVE; DUTCH VILLAGE
`RESTAURANT; LISA BURR; LARRY
`DEMONACO; MICHAEL BUFF; ELLEN
`PINTO; ROBBY REED; BLAIR HYSNI;
`DENNIS YELVINGTON; KATHY
`DURAND GORE; THOMAS E.
`WILLOUGHBY III; ROBERT FRAGOSO;
`SAMUEL SEIDENBURG; JANELLE
`ALBARELLO; MICHAEL COFFEY;
`JASON WILSON; JADE CANTERBURY;
`
`
`
`2
`2
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`NAY ALIDAD; GALYNA
`NAY ALIDAD; GALYNA
`ANDRUSYSHYN; ROBERT BENJAMIN;
`ANDRUSYSHYN; ROBERT BENJAMIN;
`BARBARA BUENNING; DANIELLE
`BARBARA BUENNING; DANIELLE
`GREENBERG; SHERYL HALEY; LISA
`GREENBERG; SHERYL HALEY; LISA
`HALL; TYA HUGHES; MARISSA
`HALL; TYA HUGHES; MARISSA
`JACOBUS; GABRIELLE KURDT; ERICA
`JACOBUS; GABRIELLE KURDT; ERICA
`PRUESS; SETH SALENGER; HAROLD
`PRUESS; SETH SALENGER; HAROLD
`STAFFORD; CARL LESHER; SARAH
`STAFFORD; CARL LESHER; SARAH
`METIVIER SCHADT; GREG STEARNS;
`METIVIER SCHADT; GREG STEARNS;
`KARREN FABIAN; MELISSA
`KARREN FABIAN; MELISSA
`BOWMAN; VIVEK DRAVID; JODY
`BOWMAN;VIVEK DRAVID; JODY
`COOPER; DANIELLE JOHNSON;
`COOPER; DANIELLE JOHNSON;
`HERBERT H. KLIEGERMAN; BETH
`HERBERTH. KLIEGERMAN;BETH
`MILLINER; LIZA MILLINER; JEFFREY
`MILLINER; LIZA MILLINER; JEFFREY
`POTVIN; STEPHANIE GIPSON;
`POTVIN; STEPHANIE GIPSON;
`BARBARA LYBARGER; SCOTT A.
`BARBARA LYBARGER;SCOTTA.
`CALDWELL; RAMON RUIZ; THYME
`CALDWELL; RAMON RUIZ; THYME
`CAFE & MARKET, INC.; HARVESTERS
`CAFE & MARKET,INC.; HARVESTERS
`ENTERPRISES, LLC; AFFILIATED
`ENTERPRISES, LLC; AFFILIATED
`FOODS, INC.; PIGGLY WIGGLY
`Foops,INC.; PIGGLY WIGGLY
`ALABAMA DISTRIBUTING CO., INC.;
`ALABAMA DISTRIBUTING CO., INC.;
`ELIZABETH TWITCHELL; TINA
`ELIZABETH TWITCHELL; TINA
`GRANT; JOHN TRENT; BRIAN LEVY;
`GRANT; JOHN TRENT; BRIAN LEVY;
`LOUISE ADAMS; MARC BLUMSTEIN;
`LOUISE ADAMS; MARC BLUMSTEIN;
`JESSICA BREITBACH; SALLY
`JESSICA BREITBACH; SALLY
`CRNKOVICH; PAUL BERGER;
`CRNKOVICH; PAUL BERGER;
`STERLING KING; EVELYN OLIVE;
`STERLING KING; EVELYN OLIVE;
`BARBARA BLUMSTEIN; MARY
`BARBARA BLUMSTEIN; MARY
`HUDSON; DIANA MEY; ASSOCIATED
`HUDSON; DIANA MEY; ASSOCIATED
`GROCERS OF NEW ENGLAND, INC.;
`GROCERS OF NEW ENGLAND,INC.;
`NORTH CENTRAL DISTRIBUTORS,
`NORTH CENTRAL DISTRIBUTORS,
`LLC; CASHWA DISTRIBUTING CO. OF
`LLC; CASHWADISTRIBUTING Co. OF
`KEARNEY, INC.; URM STORES, INC.;
`KEARNEY,INC.; URM STORES,INC.;
`WESTERN FAMILY FOODS, INC.;
`WESTERN FAMILY FOODS,INC.;
`
`
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`3
`3
`
`ASSOCIATED FOOD STORES, INC.;
`ASSOCIATED FOOD STORES, INC.;
`GIANT EAGLE, INC.; MCLANE
`GIANT EAGLE, INC.; MCLANE
`COMPANY, INC.; MEADOWBROOK
`COMPANY,INC.; MEADOWBROOK.
`MEAT COMPANY, INC.; ASSOCIATED
`MEAT COMPANY,INC.; ASSOCIATED
`GROCERS, INC.; BILO HOLDING,
`GROCERS, INC.; BILO HOLDING,
`LLC; WINNDIXIE STORES, INC.;
`LLC; WINNDIXIE STORES, INC.;
`JANEY MACHIN; DEBRA L. DAMSKE;
`JANEY MACHIN; DEBRA L. DAMSKE;
`KEN DUNLAP; BARBARA E. OLSON;
`KEN DUNLAP; BARBARA E. OLSON;
`JOHN PEYCHAL; VIRGINIA RAKIPI;
`JOHN PEYCHAL; VIRGINIA RAKIPI;
`ADAM BUEHRENS; CASEY
`ADAM BUEHRENS; CASEY
`CHRISTENSEN; SCOTT DENNIS;
`CHRISTENSEN; SCOTT DENNIS;
`BRIAN DEPPERSCHMIDT; AMY E.
`BRIAN DEPPERSCHMIDT; AMY E.
`WATERMAN; CENTRAL GROCERS,
`WATERMAN; CENTRAL GROCERS,
`INC.; ASSOCIATED GROCERS OF
`INC.; ASSOCIATED GROCERSOF
`FLORIDA, INC.; BENJAMIN FOODS
`FLORIDA, INC.; BENJAMIN FOODS
`LLC; ALBERTSONS COMPANIES
`LLC; ALBERTSONS COMPANIES
`LLC; H.E. BUTT GROCERY
`LLC; H.E. BUTT GROCERY
`COMPANY; HYVEE, INC.; THE
`COMPANY; HYVEE,INC.; THE
`KROGER CO.; LESGO PERSONAL
`KROGER CO.; LESGO PERSONAL
`CHEF LLC; KATHY VANGEMERT;
`CHEF LLC; KATHY VANGEMERT;
`EDY YEE; SUNDE DANIELS;
`EDY YEE; SUNDE DANIELS;
`CHRISTOPHER TODD; PUBLIX SUPER
`CHRISTOPHER TODD; PUBLIX SUPER
`MARKETS, INC.; WAKEFERN FOOD
`MARKETS, INC.; WAKEFERN FOOD
`CORP.; ROBERT SKAFF; WEGMANS
`CORP.; ROBERT SKAFF; WEGMANS
`FOOD MARKETS, INC.; JULIE WIESE;
`FOOD MARKETS,INC.; JULIE WIESE;
`MEIJER DISTRIBUTION, INC.; DANIEL
`MEIJER DISTRIBUTION, INC.; DANIEL
`ZWIRLEIN; MEIJER, INC.; SUPERVALU
`ZWIRLEIN; MEIER, INC.; SUPERVALU
`INC.; JOHN GROSS & COMPANY;
`INC.; JOHN GROSS & COMPANY;
`SUPER STORE INDUSTRIES; W LEE
`SUPER STORE INDUSTRIES; W LEE
`FLOWERS & CO INC.; FAMILY
`FLOWERS & CO INC.; FAMILY
`DOLLAR SERVICES, LLC; AMY
`DOLLAR SERVICES, LLC; AMY
`JACKSON; FAMILY DOLLAR STORES,
`JACKSON; FAMILY DOLLAR STORES,
`INC.; KATHERINE MCMAHON;
`INC.; KATHERINE MCMAHON;
`DOLLAR TREE DISTRIBUTION, INC.;
`DOLLAR TREEDISTRIBUTION,INC.;
`
`
`
`
`
`4
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`JONATHAN RIZZO; GREENBRIER
`INTERNATIONAL, INC.; JOELYNA A.
`SAN AGUSTIN; ALEX LEE, INC.;
`REBECCA LEE SIMOENS; BIG Y
`FOODS, INC.; DAVID TON; KVAT
`FOOD STORES, INC., DBA Food City;
`AFFILIATED FOODS MIDWEST
`COOPERATIVE, INC.; MERCHANTS
`DISTRIBUTORS, LLC; BROOKSHIRE
`BROTHERS, INC.; SCHNUCK
`MARKETS, INC.; BROOKSHIRE
`GROCERY COMPANY; KMART
`CORPORATION; CERTCO, INC.;
`RUSHIN GOLD, LLC, DBA The Gold
`Rush; UNIFIED GROCERS, INC.;
`TARGET CORPORATION; SIMON-
`HINDI, LLC; Fareway Stores, Inc.;
`Moran Foods, LLC, DBA Save-A-
`Lot; WOODMAN’S FOOD MARKET,
`INC.; DOLLAR GENERAL
`CORPORATION; SAM’S EAST, INC.;
`DOLGENCORP, LLC; SAM’S WEST,
`INC.; KRASDALE FOODS, INC.;
`WALMART STORES EAST, LLC; CVS
`PHARMACY, INC.; WALMART STORES
`EAST, LP; BASHAS’ INC.; WAL-MART
`STORES TEXAS, LLC; MARC
`GLASSMAN, INC.; WAL-MART
`STORES, INC.; 99 CENTS ONLY
`STORES; JESSICA BARTLING; AHOLD
`U.S.A., INC.; GAY BIRNBAUM;
`DELHAIZE AMERICA, LLC; SALLY
`BREDBERG; ASSOCIATED
`WHOLESALE GROCERS, INC.; KIM
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`5
`
`CRAIG; MAQUOKETA CARE CENTER;
`GLORIA EMERY; ERBERT &
`GERBERT’S, INC.; ANA GABRIELA
`FELIX GARCIA; JANET MACHEN;
`JOHN FRICK; PAINTED PLATE
`CATERING; KATHLEEN GARNER;
`ROBERT ETTEN; ANDREW GORMAN;
`GROUCHO’S DELI OF FIVE POINTS,
`LLC; EDGARDO GUTIERREZ;
`GROUCHO’S DELI OF RALEIGH;
`ZENDA JOHNSTON; SANDEE’S
`CATERING; STEVEN KRATKY;
`CONFETTI’S ICE CREAM SHOPPE;
`KATHY LINGNOFSKI; END PAYER
`PLAINTIFFS; LAURA MONTOYA;
`KIRSTEN PECK; JOHN PELS; VALERIE
`PETERS; ELIZABETH PERRON; AUDRA
`RICKMAN; ERICA C. RODRIGUEZ,
`Plaintiffs-Appellees,
`
`and
`
`JESSICA DECKER, JOSEPH A.
`LANGSTON, SANDRA POWERS,
`GRAND SUPERCENTER, INC., THE
`CHEROKEE NATION, US FOODS, INC.,
`SYSCO CORPORATION, GLADYS,
`LLC, SPARTANNASH COMPANY,
`BRYAN ANTHONY REO,
`
`Plaintiffs,
`
`v.
`
`
`
`6
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`BUMBLE BEE FOODS LLC; STARKIST
`CO.; DONGWON INDUSTRIES CO.,
`LTD.,
`
`Defendants-Appellants,
`
`and
`
`KING OSCAR, INC.; THAI UNION
`FROZEN PRODUCTS PCL; DEL
`MONTE FOODS COMPANY; TRI
`MARINE INTERNATIONAL, INC.;
`DONGWON ENTERPRISES; DEL
`MONTE CORP.; CHRISTOPHER D.
`LISCHEWSKI; LION CAPITAL
`(AMERICAS), INC.; BIG CATCH
`CAYMAN LP, AKA Lion/Big Catch
`Cayman LP; FRANCIS T
`ENTERPRISES; GLOWFISCH
`HOSPITALITY; THAI UNION NORTH
`AMERICA, INC.,
`
`Defendants.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`7
`
`Appeal from the United States District Court
`for the Southern District of California
`Dana M. Sabraw, Chief District Judge, Presiding
`
`Argued and Submitted En Banc September 22, 2021
`Pasadena, California
`
`Filed April 8, 2022
`
`Before: Andrew J. Kleinfeld, Sidney R. Thomas, Susan P.
`Graber, William A. Fletcher, Ronald M. Gould, Richard A.
`Paez, Consuelo M. Callahan, Sandra S. Ikuta, Paul J.
`Watford, Michelle T. Friedland and Kenneth K. Lee,
`Circuit Judges.
`
`Opinion by Judge Ikuta;
`Dissent by Judge Lee
`
`
`
`8
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`SUMMARY*
`
`Antitrust / Class Certification
`
`The en banc court filed an opinion affirming the district
`court’s order certifying three subclasses of tuna purchasers
`who alleged that the suppliers violated federal and state
`antitrust laws. The en banc court held that the district court
`did not abuse its discretion in concluding that the purchasers’
`statistical regression model, along with other expert evidence,
`was capable of showing that a price-fixing conspiracy caused
`class-wide antitrust impact, thus satisfying one of the
`prerequisites for bringing a class action under Federal Rule of
`Civil Procedure 23(b)(3).
`
`To take advantage of Rule 23’s procedure for aggregating
`claims, plaintiffs must make two showings. First, under
`Rule 23(a), they must establish that “there are questions of
`law or fact common to the class,” as well as demonstrate
`numerosity, typicality, and adequacy of representation.
`Second, the plaintiffs must show that the class fits into one of
`three categories under Rule 23(b). To qualify for the third
`category, Rule 23(b)(3) the district court must find that
`“questions of law or fact common to class members
`predominate over any questions affecting only individual
`members.”
`
`Joining other circuits, the en banc court held that
`plaintiffs must prove by a preponderance of the evidence the
`facts necessary to carry the burden of establishing that the
`
`* This summary constitutes no part of the opinion of the court. It has
`been prepared by court staff for the convenience of the reader.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`9
`
`prerequisites of Rule 23 are satisfied. The en banc court held
`that to prove a common question of law or fact that relates to
`a central issue in an antitrust class action, plaintiffs must
`establish that essential elements of the cause of action, such
`as the existence of an antitrust violation or antitrust impact,
`are capable of being established through a common body of
`evidence, applicable to the whole class.
`
`The en banc court held that in making the determinations
`necessary to find that the prerequisites of Rule 23(b)(3) are
`satisfied, the district court may weigh conflicting expert
`testimony and resolve expert disputes. In determining
`whether the “common question” prerequisite is met, the
`district court is limited to resolving whether the evidence
`establishes that a common question is capable of class-wide
`resolution, not whether the evidence in fact establishes that
`plaintiffs would win at trial. The district court must also
`resolve disputes about historical facts if necessary to
`determine whether the plaintiffs’ evidence is capable of
`resolving a common issue central to the plaintiffs’ claims.
`Therefore, the district court cannot decline certification
`merely because it considers plaintiffs’ evidence relating to the
`common question to be unpersuasive and unlikely to succeed
`in carrying the plaintiffs’ burden of proof on that issue. Nor
`can a district court decline to certify a class that will require
`determination of some individualized questions at trial, so
`long as such questions do not predominate over the common
`questions.
`
`The en banc court held that when individualized questions
`relate to the injury status of class members, Rule 23(b)(3)
`requires that the court determine whether individualized
`inquiries about such matters would predominate over
`common questions. Therefore, the en banc court rejected the
`
`
`
`10 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`argument that Rule 23 does not permit the certification of a
`class that potentially includes more than a de minimis number
`of uninjured class members.
`
`Beginning with the “DPP” class of direct purchasers of
`the tuna suppliers’ products, such as nationwide retailers and
`regional grocery stores, the panel held that in order to prevail
`on their antitrust claim, the DPP class was required to prove
`that the tuna suppliers engaged in a conspiracy (an antitrust
`violation), which resulted in antitrust impact in the form of
`higher prices paid by each member of the class, which in turn
`led to measurable damages. The question whether each
`member of the DPP class suffered antitrust impact was
`central to the validity of each of the DPP claims. The central
`questions on appeal were whether the expert evidence
`presented by the DPPs was capable of resolving this issue “in
`one stroke,” and whether this common question predominated
`over any individualized inquiry.
`
`The en banc court concluded that the district court did not
`abuse its discretion in certifying the class. The DPPs relied
`on the expert testimony and report of Dr. Russell Mangum,
`whose findings about the tuna market and tuna suppliers’
`collusive behavior, pricing correlation test, regression model,
`and robustness checks confirmed his theory that the price-
`fixing conspiracy resulted in substantial price impacts, and
`that the impact was common to the DPPs during the collusion
`period. The en banc court concluded that the district court
`did not make any legal or factual error when, in considering
`whether the DPPs’ evidence was capable of establishing
`antitrust impact for the class as a whole, the district court
`reviewed Dr. Mangum’s expert testimony and report, the
`rebuttal testimony and report by Dr. John Johnson, and
`Dr. Mangum’s reply, and then addressed the parties’ disputes.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`11
`
`The district court thus properly concluded that Dr. Mangum’s
`pooled regression model, along with other evidence, was
`capable of answering the question whether there was antitrust
`impact due to the collusion on a class-wide basis, thus
`satisfying this prerequisite of Rule 23(b)(3).
`
`The en banc court held that the district court did not abuse
`its discretion in determining that the evidence presented by
`the DPPs proved: (1) that the element of antitrust impact was
`capable of being established class-wide through common
`proof, and (2) that this common question predominated over
`individual questions. The en banc court rejected any
`categorical argument that a pooled regression model cannot
`control for variables relating to the individual differences
`among class members. The en banc court also rejected the
`argument that, in this case, the model’s output could not
`plausibly serve as common evidence for all class members
`given the individual differences among those class members.
`The en banc court held that the district court did not err by
`failing to resolve a dispute between the parties as to whether
`28 percent of the class did not suffer antitrust impact. Rather,
`the district court fulfilled its obligation to resolve the disputes
`raised by the parties in order to satisfy itself that the evidence
`proves the prerequisites for Rule 23(b)(3), which was that the
`evidence was capable of showing that the DPPs suffered
`antitrust impact on a class-wide basis.
`
`The en banc court held that the district court also did not
`abuse its discretion in determining that the evidence
`presented by the “CFP” class of indirect purchasers of bulk-
`sized tuna products and the “EPP” class of individual end
`purchasers was capable of proving the element of antitrust
`impact under California’s Cartwright Act, thus satisfying the
`prerequisites of Rule 23(b)(3).
`
`
`
`12 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`Dissenting, Judge Lee, joined by Judge Kleinfeld, wrote
`that the majority opinion allowed the district court to certify
`a class, even though potentially about one out of three class
`members suffered no injury. Judge Lee wrote that if
`defendants’ econometrician expert was correct that almost a
`third of the class members may not have suffered injury, then
`plaintiffs did not show the predominance of common issues
`under Rule 23(b). He wrote that because class action cases
`almost always settle once a court certifies a class, a district
`court must serve as a gatekeeper to resolve key issues
`implicating Rule 23 requirements, including whether too
`many putative class members suffered no injury, at the class
`certification stage. Further, the majority’s rejection of a de
`minimis rule, under which the number of uninjured class
`members should be de minimis, created a circuit split.
`
`COUNSEL
`
`Gregory G. Garre (argued), Samir Deger-Sen, and Shannon
`Grammel, Latham & Watkins LLP, Washington, D.C.;
`Christopher S. Yates, Belinda S. Lee, and Ashley M. Bauer,
`Latham & Watkins LLP, San Francisco, California; for
`Defendants-Appellants StarKist Co. and Dongwon Industries
`Co. Ltd.
`
`Christopher L. Lebsock (argued), Michael P. Lehmann,
`Bonny E. Sweeney, and Samantha J. Stein, Hausfeld LLP,
`San Francisco, California, for Plaintiffs-Appellees Direct
`Purchaser Plaintiff Class.
`
`Jonathan W. Cuneo (argued), Joel Davidow, and Blaine
`Finley, Cuneo Gilbert & Laduca LLP, Washington, D.C., for
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`13
`
`Plaintiffs-Appellees Commercial Food Preparer Plaintiff
`Class.
`
`Thomas H. Burt (argued), Wolf Haldenstein Adler Freeman
`& Herz LLP, New York, New York; Betsy C. Manifold,
`Rachele R. Byrd, Marisa C. Livesay, and Brittany N. DeJong,
`Wolf Haldenstein Adler Freeman & Herz LLP, San Diego,
`California; for Plaintiffs-Appellees End Payer Plaintiff Class.
`
`Corbin K. Barthold and Cory L. Andrews, Washington, D.C.,
`for Amicus Curiae Washington Legal Foundation.
`
`Ashley C. Parrish and Joshua N. Mitchell, King & Spalding
`LLP, Washington, D.C.; Steven P. Lehotsky, Jonan D. Urick,
`Daryl Joseffer, and Jennifer B. Dickey, United States
`Chamber Litigation Center; Anne M. Voigts, Quyen L. Ta,
`and Suzanne E. Nero, King & Spalding LLP, San Francisco,
`California; Kerry Perigoe, King & Spalding LLP, Los
`Angeles, California; Christopher A. Mohr, Software &
`Information Industry Association, Washington, D.C.; Jeanine
`Poltronieri, Internet Association, Washington, D.C.; for
`Amici Curiae Chamber of Commerce of the United States of
`America, Software Information Industry Association, and
`Internet Association.
`
`Randy M. Stutz, American Antitrust Institute, Washington,
`D.C.; Professor Joshua P. Davis, University of San Francisco
`School of Law, San Francisco, California; Ellen Meriwether,
`Cafferty Clobes Meriwether & Sprengal, Media,
`Pennsylvania; for Amicus Curiae American Antitrust
`Institute.
`
`
`
`14 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`Scott L. Nelson and Allison M. Zieve, Public Citizen
`Litigation Group, Washington, D.C., for Amicus Curiae
`Public Citizen Inc.
`
`Jocelyn D. Larkin, Lindsay Nako, and David S. Nahmias,
`Impact Fund, Berkeley, California, for Amici Curiae Impact
`Fund, Bet Tzedek, California Rural Legal Assistance
`Foundation, Centro Legal de la Raza, Legal Aid at Work, and
`Public Counsel.
`
`Karla Gilbride, Washington, D.C., as and for Amicus Curiae
`Public Justice P.C.
`
`Deborah A. Elman and Chad Holtzman, Garwin Gerstein &
`Fisher LLP, New York, New York; Warren T. Burns and
`Kyle K. Oxford, Burns Charest LLP, Dallas, Texas; Robert S.
`Kitchenoff, President; Lin Y. Chan, Vice President,
`Committee to Support the Antitrust Laws, Washington, D.C.;
`for Amicus Curiae Committee to Support the Antitrust Laws.
`
`Jonathan F. Cohn, Joshua J. Fougere, and Jacquelyn E.
`Fradette, Sidley Austin LLP, Washington, D.C., for Amicus
`Curiae Consumer Healthcare Products Association.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`15
`
`OPINION
`
`IKUTA, Circuit Judge:
`
`The primary suppliers of packaged tuna in the United
`States appeal the district court’s order certifying three classes
`of tuna purchasers who allege the suppliers violated federal
`and state antitrust laws. The main issue on appeal is whether
`the purchasers’ statistical regression model, along with other
`expert evidence, is capable of showing that a price-fixing
`conspiracy caused class-wide antitrust impact, thus satisfying
`one of the prerequisites for bringing a class action under Rule
`23(b)(3) of the Federal Rules of Civil Procedure. Because the
`district court did not abuse its discretion in concluding that
`Rule 23(b)(3) was satisfied, we affirm.
`
`I
`
`Bumble Bee,1 StarKist, and Chicken of the Sea (COSI),
`and their parent companies are the largest suppliers of
`packaged tuna in the United States (referred to collectively as
`the “Tuna Suppliers”). Their products include packaged tuna
`sold to direct purchasers like Costco and Walmart, and food-
`service-size tuna products sold to various distributors for
`resale. Together, the Tuna Suppliers sell over 80 percent of
`the packaged tuna in the country.
`
`In late 2015, the United States Department of Justice
`(DOJ) opened an investigation into the packaged tuna
`
`1 As a result of Appellant Bumble Bee Foods LLC’s bankruptcy
`proceeding, appellate proceedings against Bumble Bee Foods have been
`held in abeyance due to the automatic stay imposed by 11 U.S.C. § 362.
`Dkt. No. 51.
`
`
`
`16 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`industry for violations of federal antitrust law. The DOJ
`investigation uncovered evidence of a price-fixing scheme
`among the Tuna Suppliers, which led the DOJ to enter
`multiple indictments alleging a criminal conspiracy to fix
`prices of canned tuna for the period from approximately
`November 2011 through December 2013. Bumble Bee,
`StarKist, and three tuna industry executives pleaded guilty to
`the conspiracy. Bumble Bee’s former CEO was convicted by
`a jury of a conspiracy to fix prices.2 COSI cooperated with
`the DOJ and admitted to price fixing in exchange for
`leniency.
`
`A number of purchasers of the Tuna Suppliers’ products
`(referred to collectively as the “Tuna Purchasers”) filed
`putative class actions against the Tuna Suppliers alleging
`violations of various federal and state antitrust laws. The
`Tuna Purchasers alleged that the Tuna Suppliers engaged in
`a conspiracy from November 2010 through at least December
`31, 2016 to fix prices of tuna, along with other collusive
`activities in furtherance of the price-fixing conspiracy. The
`Tuna Purchasers alleged that they were damaged by the
`
`2 Plea Agreement, United States v. Bumble Bee Foods LLC, No.
`3:17-cr-00249-EMC (N.D. Cal. Aug. 2, 2017), ECF No. 32; Plea
`Agreement, United States v. Worsham, No. 3:16-cr-00535-EMC (N.D.
`Cal. Mar. 15, 2017), ECF No. 14; Plea Agreement, United States v.
`Cameron, No. 3:16-cr-00501-EMC (N.D. Cal. Jan. 25, 2017), ECF No.
`18; Plea Agreement, United States v. Hodge, No. 3:17-cr-00297-EMC
`(N.D. Cal. June 28, 2017), ECF No. 13; Plea Agreement, United States v.
`StarKist Co., No. 3:18-cr-00513-EMC (N.D. Cal. Nov. 14, 2018),
`ECF No. 24.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`17
`
`conspiracy because they paid supra-competitive prices for the
`Tuna Suppliers’ products.3
`
`The Tuna Purchasers’ actions were consolidated in a
`multidistrict litigation pretrial proceeding in the Southern
`District of California. The Tuna Purchasers consist of three
`putative subclasses: (i) direct purchasers of the Tuna
`Suppliers’ products, such as nationwide retailers and regional
`grocery stores, who purchased packaged tuna between June
`1, 2011 and July 1, 2015 (the “DPPs”); (ii) indirect
`purchasers of the Tuna Suppliers’ products who bought bulk-
`sized tuna products between June 2011 and December 2016
`for prepared food or resale (the “CFPs”); and (iii) individual
`end purchasers who bought the Tuna Suppliers’ products
`between June 1, 2011 and July 1, 2015 for personal
`consumption (the “EPPs”).
`
`In 2018, the Tuna Purchasers moved to certify the three
`subclasses under Rule 23 of the Federal Rules of Civil
`Procedure to proceed as a class action. See Fed. R. Civ. P.
`23(a), (b)(3). To demonstrate class-wide antitrust impact,
`each subclass proffered evidence from a different economist,
`each of whom employed substantially similar methodologies,
`to show that each member of the subclasses had paid an
`overcharge caused by the Tuna Suppliers’ conspiracy. The
`Tuna Suppliers contested this expert evidence through their
`own economists. The district court held a three-day
`evidentiary hearing on the certification motion, and heard
`
`3 Supra-competitive prices are those prices elevated “above
`competitive levels” by a market participant who “exercise[s] [its] market
`power” to do so. ABA Section of Antitrust Law, Econometrics: Legal,
`Practical, and Technical Issues 252 (2d ed. 2014) (“Econometrics”).
`
`
`
`18 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`substantial testimony from each expert witness. In July 2019,
`the district court certified all three subclasses.
`
`The Tuna Suppliers timely appealed, and a panel of this
`court vacated the district court’s order and remanded. See
`Olean Wholesale Grocery Coop., Inc. v. Bumble Bee Foods
`LLC, 993 F.3d 774, 794 (9th Cir. 2021), reh’g en banc
`granted, 5 F.4th 950 (9th Cir. 2021). We took the case en
`banc to consider whether the district court erred in finding
`that each subclass satisfied the requirement that “questions of
`law or fact common to class members predominate over any
`questions affecting only individual members.” Fed. R. Civ.
`P. 23(b)(3).
`
`We have jurisdiction under 28 U.S.C. § 1292(e) and
`Rule 23(f) of the Federal Rules of Civil Procedure. We
`review the decision to certify a class and “any particular
`underlying Rule 23 determination involving a discretionary
`determination” for an abuse of discretion. Yokoyama v.
`Midland Nat’l Life Ins. Co., 594 F.3d 1087, 1091 (9th Cir.
`2010). We review the district court’s determination of
`underlying legal questions de novo, id., and its determination
`of underlying factual questions for clear error, see Ruiz
`Torres v. Mercer Canyons Inc., 835 F.3d 1125, 1132 (9th Cir.
`2016). The Supreme Court has indicated that a court’s
`determination regarding what a statistical regression model
`may prove or is capable of proving is not a question of fact,
`even though there may be disputed issues of fact raised by
`“the data contained within an econometric model.” Comcast
`Corp. v. Behrend, 569 U.S. 27, 36 n.5 (2013). Accordingly,
`we review the district court’s determination that a statistical
`regression model, along with other expert evidence, is
`capable of showing class-wide impact, thus satisfying one of
`the prerequisites of Rule 23(b)(3) of the Federal Rules of
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`19
`
`Civil Procedure, for an abuse of discretion. See Yokoyama,
`594 F.3d at 1091.
`
`II
`
`A
`
`Rule 23 provides a procedural mechanism for “a federal
`court to adjudicate claims of multiple parties at once, instead
`of in separate suits.” Shady Grove Orthopedic Assocs., P.A.
`v. Allstate Ins. Co., 559 U.S. 393, 408 (2010). As a claims-
`aggregating device, Rule 23 “leaves the parties’ legal rights
`and duties intact and the rules of decision unchanged,” id.,
`and it does not affect the substance of the claims or plaintiffs’
`burden of proof, see 28 U.S.C. § 2072(b).
`
`To take advantage of Rule 23’s procedure for aggregating
`claims, plaintiffs must make two showings. First, the
`plaintiffs must establish “there are questions of law or fact
`common to the class,” as well as demonstrate numerosity,
`typicality and adequacy of representation.4 Fed. R. Civ. P.
`
`4 Rule 23(a) provides:
`
`Prerequisites. One or more members of a class may sue
`or be sued as representative parties on behalf of all
`members only if:
`
`(1) the class is so numerous that joinder of all
`members is impracticable;
`
`(2) there are questions of law or fact common to
`the class;
`
`
`
`20 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`23(a). A common question “must be of such a nature that it
`is capable of classwide resolution—which means that
`determination of its truth or falsity will resolve an issue that
`is central to the validity of each one of the claims in one
`stroke.” Wal-Mart Stores, Inc. v. Dukes, 564 U.S. 338, 350
`(2011). By contrast, an individual question is one where
`members of a proposed class will need to present evidence
`that varies from member to member. See Tyson Foods, Inc.
`v. Bouaphakeo, 577 U.S. 442, 453 (2016).
`
`Second, the plaintiffs must show that the class fits into
`one of three categories. See Fed. R. Civ. P. 23(b). To qualify
`for the third category, Rule 23(b)(3), the district court must
`find that “the questions of law or fact common to class
`members predominate over any questions affecting only
`individual members, and that a class action is superior to
`other available methods for fairly and efficiently adjudicating
`the controversy.” Fed. R. Civ. P. 23(b)(3).5 “The
`predominance
`inquiry asks whether
`the common,
`
`(3) the claims or defenses of the representative
`parties are typical of the claims or defenses of the
`class; and
`
`(4) the representative parties will fairly and
`adequately protect the interests of the class.
`
`5 Rule 23(b)(3) provides in pertinent part:
`
`A class action may be maintained if Rule 23(a) is
`satisfied and if . . . (3) the court finds that the questions
`of law or fact common to class members predominate
`over any questions affecting only individual members,
`and that a class action is superior to other available
`methods for fairly and efficiently adjudicating the
`controversy.
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`21
`
`aggregation-enabling, issues in the case are more prevalent or
`important than the non-common, aggregation-defeating,
`individual issues.” Tyson Foods, 577 U.S. at 453 (cleaned
`up). The requirements of Rule 23(b)(3) overlap with the
`requirements of Rule 23(a): the plaintiffs must prove that
`there are “questions of law or fact common to class members”
`that can be determined in one stroke, see Wal-Mart, 564 U.S.
`at 349, in order to prove that such common questions
`predominate over individualized ones, see Tyson Foods,
`577 U.S. at 453–54. Therefore, courts must consider cases
`examining both subsections in performing a Rule 23(b)(3)
`analysis.
`
`B
`
`Before it can certify a class, a district court must be
`“satisfied, after a rigorous analysis, that the prerequisites” of
`both Rule 23(a) and 23(b)(3) have been satisfied. Gen. Tel.
`Co. of Sw. v. Falcon, 457 U.S. 147, 161 (1982); Comcast,
`569 U.S. at 35. “[P]laintiffs wishing to proceed through a
`class action must actually prove—not simply plead—that their
`proposed class satisfies each requirement of Rule 23,
`including (if applicable) the predominance requirement of
`Rule 23(b)(3),” and must carry their burden of proof “before
`class certification.” Halliburton Co. v. Erica P. John Fund,
`Inc., 573 U.S. 258, 275–76 (2014).
`
`We have not yet prescribed the plaintiffs’ burden for
`proving that the prerequisites of Rule 23 are satisfied. In the
`absence of direction from Congress or the Constitution, it is
`up to the court to prescribe the burden of proof. See Herman
`& MacLean v. Huddleston, 459 U.S. 375, 389–90 (1983). To
`do so, we must consider both the allocation of “the risk of
`error between the litigants” and “the relative importance
`
`
`
`22 OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`attached to the ultimate decision.” Id. at 389 (quoting
`Addington v. Texas, 421 U.S. 418, 423 (1979)). The
`preponderance of the evidence standard allows both parties to
`“share the risk of error in roughly equal fashion,” id. at 390
`(quoting Addington, 421 U.S. at 423), while “[a]ny other
`standard expresses a preference for one side’s interests,” id.
`Therefore, the preponderance of the evidence standard is
`“generally applicable in civil actions.” Id. By contrast, the
`Court has “required proof by clear and convincing evidence
`where particularly important individual interests or rights are
`at stake,” such as termination of parental rights or involuntary
`commitment proceedings. Id. at 389.
`
`Applying this test here, the balance of interests in this
`case favors prescribing the preponderance of the evidence
`standard. The Supreme Court has made clear that Rule 23 is
`consistent with the Rules Enabling Act and does not “abridge,
`enlarge or modify any substantive right.” Shady Grove,
`559 U.S. at 406–07 (citing 28 U.S.C. § 2072(b)). Rule 23
`does not “change plaintiffs’ separate entitlements to relief nor
`abridge defendants’ rights” and, instead, alters “only how the
`claims are processed.” Id. at 408. Therefore, the Supreme
`Court has concluded that the authorization of class actions is
`substantively neutral, even though it may expose defendants
`to the imposition of aggregate liability. Id. Because the
`application of Rule 23 to certify a class does not alter the
`defendants’ rights or interests in a substantive way, there is
`no basis for applying a heightened standard of proof beyond
`the traditional preponderance standard. We therefore join our
`sister circuits in concluding that plaintiffs must prove the
`facts necessary to carry the burden of establishing that the
`
`
`
`OLEAN WHOLESALE GROCERY V. BUMBLE BEE FOODS
`
`23
`
`prerequisites of Rule 23 are satisfied by a preponderance of
`the evidence.6
`
`In carrying the burden of proving facts necessary for
`certifying a class under Rule 23(b)(3), plaintiffs may use any
`admissible evidence. See Tyson Foods, 577 U.S. at 454–55
`(explaining that admiss