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University of Pennsylvania Carey Law School

Dormant commerce clause

2017

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The Economic Foundation Of The Dormant Commerce Clause, Michael S. Knoll, Ruth Mason Jan 2017

The Economic Foundation Of The Dormant Commerce Clause, Michael S. Knoll, Ruth Mason

Faculty Scholarship at Penn Law

Last Term, a sharply divided Supreme Court decided a landmark dormant Commerce Clause case, Comptroller of the Treasury of Maryland v. Wynne. Wynne represents the Court’s first clear acknowledgement of the economic underpinnings of one of its main doctrinal tools for resolving tax discrimination cases, the internal consistency test. In deciding Wynne, the Court relied on economic analysis we provided. This Essay explains that analysis, why the majority accepted it, why the dissenters’ objections to the majority’s reasoning miss their mark, and what Wynne means for state taxation. Essential to our analysis and the Court’s decision in ...