I analyze the basis of the market economy in classical Rome, from the perspective of personal-versus-impersonal exchange and focusing on the role of the state in providing market-enabling institutions. I start by reviewing the central conflict in all exchanges between those holding and those...

In a model where biased judges can distort contract enforcement, we uncover positive feedback effects between the use of innovative contracts and legal evolution that improve verifiability and contracting over time. We find, however, that the cost of judicial bias also grows over time because...

Previous analysis has shown that traders may opt for specific technologies with no joint productivity advantage as a way to commit themselves to trading jointly, but only when long-term contracting is infeasible. This paper proves that specificity can also be optimal (by relaxing the...

This paper documents and studies the gender gap in performance among associate lawyers in the United States. Unlike other high-skilled professions, the legal profession measures and rewards productivity with objective methods that are widely used and comparable across firms: the number of hours...

This paper estimates the effect of piracy attacks on shipping costs using a unique data set on shipping contracts in the dry bulk market. We look at shipping routes whose shortest path exposes them to piracy attacks and find that the increase in attacks in 2008 lead to around a ten percent...

We develop a model in which delinquents compete with each other in criminal activities but may benefit from being friends with other criminals by learning and acquiring proper know-how on the crime business. By taking the social network connecting agents as given, we study the subgame perfect...

We report results from a randomized policy experiment designed to test whether increased audit risk deters rent extraction in local public procurement and service delivery in Brazil. Our estimates suggest that temporarily increasing annual audit risk by about 20 percentage points reduced the...

International business transactions pose the problem of deterring bribing of public officials by foreign firms. We first analyze a convention styled after the OECD's "Convention on Combating Bribery of Foreign Public Officials in International Business Transactions" that requires signatory...

In a market where firms with different characteristics decide upon both the level of emissions and their reports, we study the optimal audit policy for an enforcement agency whose objective is to minimize the level of emissions. We show that it is optimal to devote the resources primarily to the...

This paper analyses the interplay between social structure and information exchange in two competing activities, crime and labor. We consider a dynamic model in which individuals belong to mutually exclusive two-person groups, referred to as dyads. Two individuals belonging to the same dyad hold...