In a seminal paper, Aumann (1987, Econometrica 55, 1–18) showed how the choices of rational players could be analyzed in a unified state space framework. His innovation was to include the choices of the players in the description of the states, thus abolishing Savage’s (1954, The...

Although courts justify the constitutional law of libel with consequential reasoning, the true consequences of liability for harmful speech have never been fully explored. We construct an analytical framework for studying libel law, emphasizing both the positive and negative externalities...

Many legal rules can be interpreted as creating options. Option pricing is thus important for understanding the ex ante effects of these rules. And, recognizing that individuals, whose behavior the law aims to influence, are imperfectly rational, a behavioral option pricing model is a...