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Thin Rationality Review, Jacob Gersen, Adrian Vermeule
Thin Rationality Review, Jacob Gersen, Adrian Vermeule
Michigan Law Review
Under the Administrative Procedure Act, courts review and set aside agency action that is “arbitrary [and] capricious.” In a common formulation of rationality review, courts must either take a “hard look” at the rationality of agency decisionmaking, or at least ensure that agencies themselves have taken a hard look. We will propose a much less demanding and intrusive interpretation of rationality review—a thin version. Under a robust range of conditions, rational agencies have good reason to decide in a manner that is inaccurate, nonrational, or arbitrary. Although this claim is seemingly paradoxical or internally inconsistent, it simply rests on an …