Delinquents are embedded in a network of relationships. Each delinquent decides in a non-cooperative way how much delinquency effort he will exert. We characterize the Nash equilibrium and derive an optimal enforcement policy, called the key-player policy. We then extend our characterization of...

This paper aims to explain the spatial variations of crime, both between and within cities. Two types of mechanisms are put forward: Social interactions that stipulate that an individual is more likely to commit crime if his peers commit than if they do not commit crime, and distance to jobs...

Using the UK Fourth National Survey of Ethnic Minorities, we document differences in integration patterns between Muslims and non-Muslims. We find that Muslims integrate less and more slowly than non-Muslims. In terms of estimated probability of having a strong religious identity, a Muslim born...