News & Analysis as of

Daubert Standards Class Action

Robinson Bradshaw

Old Dogs and New Tricks: Supreme Court Denies Certiorari in Ninth Circuit Case Allowing Reliance on Inadmissible Expert Work for...

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Earlier this month, the Supreme Court declined to hear an appeal from the Ninth Circuit’s decision in Lytle v. Nutramax Laboratories, Inc. affirming the certification of a class of owners of elderly dogs, alleging that the...more

Montgomery McCracken

Recent Third Circuit Opinion Reinforces That Daubert Requires Courts to Examine the Data Underlying an Expert’s Analysis

Montgomery McCracken on

February 11, 2025 Types : Alerts Meta Platforms, Inc. recently defeated certification of a class of consumers who claim the company lied about its user privacy safeguards and violated antitrust laws. ...more

Carlton Fields

Florida Appeals Court Decisions: Week of January 20-24, 2025

Carlton Fields on

U.S. Eleventh Circuit Court of Appeals - Isaac Indus v. PDVSA - personal jurisdiction, foreign sovereign immunity, breach of contract - USA v. Schwarzbaum - foreign bank accounts, IRS form FBAR, penalties, Excessive...more

Harris Beach Murtha PLLC

Medical and Life Sciences: New York 2024 Year in Review

From medical devices to OTC drugs, preemption to expert preclusion, New York state and federal courts issued decisions in 2024 which further shaped the landscape in the medical and life sciences legal world. To prepare the...more

Kilpatrick

Sixth Circuit vacates certification of ten statewide classes against Nissan based on district court’s failure to ascertain common...

Kilpatrick on

Takeaway: The Sixth Circuit recently emphasized how demanding Rule 23’s commonality requirement can be. In In re Nissan North America, Inc. Litigation, --- F.4th ----, No. 23-5950, 2024 WL 4864339 (6th Cir. Nov. 22, 2024),...more

Faegre Drinker Biddle & Reath LLP

Sixth Circuit Applies FRE 702 to Class Certification Experts and Highlights Commonality and Predominance Issues for Products That...

Class certification decisions under Rule 23 of the Federal Rules of Civil Procedure mark a critical stage in any putative class action lawsuit. Rule 23(a) requires plaintiffs to prove, among other things, that “there are...more

Kilpatrick

Eighth Circuit concludes that admissibility at class certification is a “red-herring”

Kilpatrick on

In Cody v. City of St. Louis, 103 F.4th 523 (8th Cir. 2024), the Eight Circuit maintained its position that admissibility standards do not apply strictly at the class certification stage, thereby solidifying a circuit split...more

Shook, Hardy & Bacon L.L.P.

Class Action Decisions Published April 2024 - Developments in Class Action Law

Predominance and Classwide Damage Models. The Ninth Circuit held that class action plaintiffs may rely on a reliable though not-yet-executed damages model (in this case a proposed but not done conjoint analysis) to...more

Troutman Pepper Locke

EDVA Judge Allows Pension Investment Expert to Testify in Class Action ERISA Case

Troutman Pepper Locke on

A recent decision by Senior District Judge Robert Payne on a Daubert motion in class action litigation against a pension fund offers some helpful lessons on challenging expert witnesses in the EDVA. Trauernicht v. Genworth...more

Carlton Fields

Classified Monthly: A Roundup of Class Action Decisions From Federal Appellate Courts April 2024

Carlton Fields on

The Roundup covers notable class action decisions each month from federal appellate courts, as well as notable Supreme Court class action cert petitions....more

Carlton Fields

Rough Waters in the Expert “Hot Tub” - Court Throws Class Expert Overboard in Google Play Store Litigation

Carlton Fields on

One notable opportunity associated with antitrust class action practice is the expert “hot tub,” which generally speaking is an in-court, on-the-record “debate” between dueling economists, with the court, parties, and experts...more

Faegre Drinker Biddle & Reath LLP

Listen Up Class: The Role of Daubert at the Class Certification Stage in the Ninth Circuit

Class certification is the feature fight of any putative class action lawsuit. If granted, it can multiply the stakes of a case several hundred- or thousand-fold. If denied, it can signal the end of the litigation. Because of...more

Faegre Drinker Biddle & Reath LLP

Exclusion of Damages Expert at Class Certification Stage Results in Partial Denial of Certification Motion

Just a decade ago, it was still an open question whether parties could challenge the admissibility of expert testimony in class certification proceedings. The United States Supreme Court recognized the issue in Wal-Mart...more

Haug Partners LLP

En Banc 9th Circuit Puts Packaged Tuna Antitrust Classes Back in the Case, Dissent Warns of a “Tidal Wave Of Monstrously Oversized...

Haug Partners LLP on

On April 8, 2022, the U.S. Court of Appeals for the Ninth Circuit, sitting en banc, re-certified three classes of packaged tuna buyers, rejecting a Ninth Circuit panel-majority’s per se rule regarding a de minimis number of...more

Akin Gump Strauss Hauer & Feld LLP

9th Circuit Provides Key Guidance for Defendants Opposing Rule 23(b)(3) Class Actions

Key Points - The en banc 9th Circuit clarified numerous rules applicable to class actions brought under Rule 23(b)(3) of the Federal Rules of Civil Procedure. The court’s watershed decision in Olean Wholesale Grocery v....more

Jenner & Block

Ninth Circuit Rejects Challenges to Conjoint Analysis in Consumer Class Action

Jenner & Block on

In recent years, conjoint analysis has proliferated as a methodology for calculating class-wide damages in consumer class actions. While conjoint analysis first emerged as a marketing tool for measuring consumers’ relative...more

Foley & Lardner LLP

Sixth Circuit Holds Non-Expert Evidence Need Not Be Admissible to Support Class Certification, but Approves Stringent Claim...

Foley & Lardner LLP on

At Class Certification Stage, Non-Expert Evidence Must Be Reliable, but Not Necessarily Admissible: As the Supreme Court explained 40 years ago in General Telephone Co. of Southwest v. Falcon, 457 U.S. 147, 161 (1982),...more

Seyfarth Shaw LLP

Class Certification Granted In Staffing Company Workplace Bias Suit

Seyfarth Shaw LLP on

Seyfarth Synopsis: For nearly a decade, the aftershocks of the U.S. Supreme Court’s decision in Wal-Mart Stores, Inc. v. Dukes have curtailed the success of plaintiffs attempting to certify class discrimination claims in...more

McDermott Will & Emery

[Event] Wage The Battle To Win The War: Expert Challenges At Class Certification - September 24th, Chicago, Illinois

Certifying an antitrust class under Rule 23 has become a battle. In the last 20 years, courts have been changing the game around Rule 23 interpretation, and rigorous analysis at class certification has made briefing...more

Patterson Belknap Webb & Tyler LLP

Proving Retail Sales Figures In Consumer Class Actions: Different Approaches Lead To Very Different Results

To prove damages in a consumer class action, the named plaintiff must show—among other things—how many units of the defendant’s product were purchased by consumers in the relevant state (or states). This is easier said than...more

BakerHostetler

Do Daubert Standards Apply at the Certification Stage? Ninth Circuit Splits With Itself

BakerHostetler on

It is fitting that the day after Halloween the Ninth Circuit issued its denial of rehearing en banc in Sali v. Corona Regional Medical Center, Case No. 15-56460, because the issue it raises, like Michael Myers in the...more

BakerHostetler

Experts Must Satisfy Daubert Standards at Certification Stage

BakerHostetler on

D.C. District Court Follows Dukes Admonition - Nearly seven years ago, in Wal-Mart Stores, Inc. v. Dukes, 564 U.S. 338 (2011), the Supreme Court addressed, at least in significant respect, the question of whether experts must...more

BakerHostetler

Ninth Circuit Finds Evidence at Class Certification Not Required to Be Admissible - The Last Word on the Issue?

BakerHostetler on

In a 28-page opinion, a panel of the Ninth Circuit overturned a district court’s denial of class certification, in part, because the lower court required supporting evidence to be admissible. This decision certainly...more

Orrick, Herrington & Sutcliffe LLP

Checklist for Strengthening Your Defenses to 401k Plan Class Actions

The last ten years have seen a proliferation of high-profile class actions alleging breach of ERISA fiduciary duties of prudence and loyalty against plan fiduciaries. The claims are usually based upon alleged excessive...more

Carlton Fields

Noodle This! The Yin and Yang of Two Courts, Two Antitrust Cases, Two Class Certification Motions, Two Daubert Challenges, Two...

Carlton Fields on

Noodle this: Two significant orders on class certification in antitrust matters issued last week. Both were heavily influenced by the threshold determination of Daubert challenges to the plaintiffs’ expert evidence. In one...more

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