564 U.S. 338 (2011) Cited 6,874 times 508 Legal Analyses
Holding in Rule 23 context that “[w]ithout some glue holding the alleged reasons for all those decisions together, it will be impossible to say that examination of all the class members' claims for relief will produce a common answer”
521 U.S. 591 (1997) Cited 7,108 times 69 Legal Analyses
Holding that courts are "bound to enforce" Rule 23's certification requirements, even where it means decertifying a class after they had reached a settlement agreement and submitted it to the court for approval
457 U.S. 147 (1982) Cited 5,768 times 33 Legal Analyses
Holding that named plaintiff must prove “much more than the validity of his own claim”; the individual plaintiff must show that “the individual's claim and the class claims will share common questions of law or fact and that the individual's claim will be typical of the class claims,” explicitly referencing the “commonality” and “typicality” requirements of Rule 23
Holding that " common nucleus of facts and potential legal remedies dominate[d]" over "idiosyncratic differences between state consumer protection laws" where a nationwide class of minivan buyers’ claims turned on "questions of [the manufacturer’s] prior knowledge of the [vehicle’s] deficiency, the design defect, and a damages remedy"
431 U.S. 395 (1977) Cited 1,318 times 1 Legal Analyses
Holding that plaintiffs who lacked qualifications to be hired as drivers suffered no injury from alleged discriminatory practices and therefore lacked standing to represent class of persons who did suffer injury
Holding that for an act to be "unfair," it must "threaten" a violation of law or "violate the policy or spirit of one of those laws because its effects are comparable to or the same as a violation of the law"
Holding that "named plaintiffs ... are eligible for reasonable incentive payments" in addition to reimbursement "for their substantiated litigation expenses, and identifiable services rendered to the class directly under the supervision of class counsel"
Holding class representatives had standing to challenge common marketing of cigarettes despite differences in the advertisements or statements on which class members relied
Fed. R. Civ. P. 23 Cited 35,874 times 1249 Legal Analyses
Holding that, to certify a class, the court must find that "questions of law or fact common to class members predominate over any questions affecting only individual members"
When a rate of interest is prescribed by a law or contract, without specifying the period of time by which such rate is to be calculated, it is to be deemed an annual rate. Ca. Civ. Code § 1916 Enacted 1872.