Holding that the typicality requirement was not satisfied where the plaintiff's proposed class "include[d] people who knew fountain Diet Coke contained saccharin and bought it anyway" when the plaintiff "claim[ed] she was deceived and injured"
Holding that district court must make a "definitive assessment of Rule 23 requirements" and "resolve[] . . . factual disputes relevant to each Rule 23 requirement"
Holding that whether a hospital's failure to object to a lower reimbursement rate over a period of eight years constituted a waiver of its contractual right to the higher reimbursement rate was a question of fact
Holding that where the underlying tort theory fails, "there is no independent tort to provide a basis for liability under . . . concert of action, conspiracy, and aiding and abetting theories"
Holding that an aggregate determination that “bears little or no relationship to the amount of economic harm actually caused” violates the Rules Enabling Act
Fed. R. Civ. P. 23 Cited 35,634 times 1242 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"