327 U.S. 251 (1946) Cited 991 times 3 Legal Analyses
Holding that when the plaintiff cannot prove his damages by precise computation, the jury "may make a just and reasonable estimate of the damage based on relevant data, and render its verdict accordingly"
Holding that because the expert failed to reliably rule in his theory of causation, the court did not need to "venture into the quagmire of attempting to define the parameters of a reliable process of 'ruling out' other possible causes" of the disease in question
Holding the district court did not abuse its discretion in excluding expert testimony, when the expert "had ample opportunity to identify all of the bases for his conclusions and to explain his methodology in reaching those conclusions" yet failed to do so
Holding that class representatives "need not have participated in a wide variety of 900-number programs to have suffered harm typical of the harm suffered by the class members in general"
Fed. R. Civ. P. 23 Cited 36,582 times 1266 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"