Many organizations use onboarding programs to assist newcomers with the transition process. Are brief social interactions during such programs sufficient to create lasting performance spillovers? Exploiting quasi-random assignment to groups of a two-day freshman orientation program for...

A large fraction of the variance in aggregate crime rates cannot be explained by observable socioeconomic conditions. Social determinants of crime may drive the unexplained variation, but economic models of social influence so far emphasize the intensity of criminal effort, not the decision of...

Peer influence on effort devoted to some activity is often studied using proxy variables when actual effort is unobserved. For instance, in education, academic effort is often proxied by GPA. We propose an alternative approach that circumvents this approximation. Our framework distinguishes...