568 U.S. 455 (2013) Cited 1,816 times 100 Legal Analyses
Holding that certain merits questions “should not be resolved in deciding whether to certify a proposed class,” but are “properly addressed at trial or in a ruling on a summary-judgment motion”
553 U.S. 639 (2008) Cited 1,102 times 7 Legal Analyses
Holding that bidders at a county tax-lien auction plausibly alleged RICO proximate causation when they lost to a competing bidder who lied to the county about complying with the auction's rules
503 U.S. 258 (1992) Cited 1,665 times 8 Legal Analyses
Holding that the Securities Investor Protection Corporation (SIPC) could not recover under RICO for stock-manipulation scheme that bankrupted broker-dealers, triggering a statutory requirement that SIPC meet the broker-dealers' obligations to their customers
559 U.S. 1 (2010) Cited 762 times 2 Legal Analyses
Holding that the defendant retailer's failure to make state-law-required disclosures that would make it easier for the City to recover delinquent taxes did not proximately cause the City's injury, which more directly came from the delinquent taxpayers themselves
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 34,889 times 1234 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"
Mass. Gen. Laws ch. 93A § 9 Cited 897 times 10 Legal Analyses
Requiring on its face that the "written demand" must "reasonably describ[e] the unfair or deceptive act or practice relied upon and the injury suffered"