This paper analyzes the incentive properties of the standard and burden of proof for a finding of negligence, when evidence is imperfect and rests with the parties. We show that the "preponderance of evidence" standard provides maximal incentives to exert care. This holds even though litigants...

We incorporate normative motivations into the economic model of accidents and tort rules. The social norm is that one should avoid harming others and should compensate if nevertheless harm is caused. To some extent, this is internalized through intrinsic moral concerns; moreover, those thought...

We develop a counterterrorism model to analyze the effects of allowing a government agency to torture suspects when evidence of terrorist involvement is strong. We find that legalizing torture in strong-evidence cases has offsetting effects on agency incentives to counter terrorism by means...

We analyze the complementarity between legal incentives (the threat of being held liable for damages) and normative incentives (the fear of social disapproval or stigma) in situations where instances of misbehavior are not perfectly observable. There may be multiple equilibria within a given...

We model deterrence with costly punishment when criminals have different abilities. Abilities are unobserved by both criminals and the courts. Based on past successes, criminals update their priors on being high-ability criminals. Courts cannot observe a criminal’s total past offenses. They do...

I consider the efficiency of liability rules when courts obtain imperfect information about precautionary behavior. I ask what tort rules are consistent with socially efficient precautions, what informational requirements the evidence about the parties' behavior must satisfy, what decision rules...

We consider a model of crime with rational Bayesian Jurors. We find that if jurors are not perfectly informed, even when there is no limit to the size of the punishment that can be imposed, it is not possible to deter all crime. There is a finite lower found on the crime rate which results from...

This paper provides a signaling model to analyze the equilibrium fee structures arising when attorneys are heterogeneous with regard to unobservable ability. Unlike fixed fees, contingent fees are more profitable to attorneys who have a greater probability of winning, and thus may serve as an...

We extend the signaling model of Reinganum and Wilde (1986) by allowing for the possibility of negative expected value (NEV) suits. If filing costs are positive, then there exists a separating equilibrium such that plaintiffs with NEV suits choose not to file. By making the filing decision...