The economic literature on enforcement is generally pessimistic concerning the use of legal aid. In this Paper we show that legal aid can be part of optimal law enforcement. The rationale behind our result is that with legal aid, in a system with legal or judicial error, both guilty and innocent...

The harm caused by many acts is not certain but probabilistic. Current public enforcement of the law combines harm-based sanctions (usually in criminal law) with act-based sanctions (very common in administrative law and regulation). We propose an economic theory of the choice between harm-based...

Under contingent fees the attorney gets a share of the judgement; under conditional fees the lawyer gets an upscale premium if the case is won which is, however, unrelated to the adjudicated amount. We compare conditional and contingent fees in a principal-agent framework where the lawyer...

We consider the role of asymmetric information on the emergence of collusion between criminals and enforcers, in the framework proposed by Bowles and Garoupa (1997) and Polinsky and Shavell (2001). Our Paper proposes that the optimal criminal sanction for the underlying offense is not...

In this Paper we provide a strategic explanation for the spontaneous convergence of legal rules, which nevertheless falls short of harmonization across jurisdictions. We identify a free-riding problem and discuss its implications for legal culture, integration, and harmonization. It is argued...