Adequacy of representation is a central concept in the law of case aggregation. Yet proceduralists today, some seventy years after the germinal case of Hansberry v. Lee, still lack a clear understanding of what representation means in adjudication and why a nonparty can be bound on a...

This Article addresses the normative issues raised by the use of statistical sampling to adjudicate large case aggregations. In its recent decision, Wal-Mart Stores, Inc. v. Dukes, the Supreme Court referred to sampling pejoratively as “Trial by Formula.” This Article argues that the...