In a recent decision, the Ninth Circuit offered a useful reminder that the need for individualized proof of causation can affect multiple elements of the Rule 23 test for class certification.
In Small v. Allianz Life Ins. Co. of N. Am., No. 23-55821, — F.4th —-, 2024 WL 5051192 (9th Cir. Dec. 10, 2024), resolving a District Court split, the Ninth Circuit adopted a “causation” theory of harm for claims asserting that an insurance company had violated the California Insurance Code, holding that plaintiffs must show not only that an insurance company violated the Code (violation-only theory), but also that the violation of the Code caused a plaintiff harm (causation theory).Continue Reading Ninth Circuit Denies Class Certification because Causation Theory Requires Individual Analysis of Claims