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
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
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
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
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
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
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
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
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
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
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
Plaintiff purchasers of traditional blood reagents, products that test the compatibility of donor blood with recipients, brought putative class actions claiming that two defendant companies conspired to fix prices in...more
The Third Circuit recently joined the Seventh, Eighth, and Ninth Circuits in holding that, where a Daubert challenge is made to the use of expert testimony in support of class certification, the Daubert challenge must be...more
On Wednesday, April 8, 2015, the Third Circuit Court of Appeals vacated a district court’s order certifying a class of direct purchasers of blood reagents in a price-fixing suit against Ortho-Clinical Diagnostics Inc. In re...more
On March 27, 2013, the U.S. Supreme Court decided Comcast Corp. v. Behrend, Case No. 11-864, which tightened class certification requirements in two respects. First, Behrend requires plaintiffs to show a method by which...more
Today the U.S. Supreme Court rendered a pivotal decision, holding that as a prerequisite for certification of a class action, a plaintiff must introduce admissible evidence to show that the case is susceptible to awarding...more