The heavy police presence at football matches in England has reduced hooliganism in the stadium - but at what cost in terms of both policying budgets and under-protected places elsewhere in the neighbourhood? Olivier Marie examines the multiple effects of football matches on crime.

During large sporting events criminal behaviour may be affected via three main channels: (i) fan concentration, (ii) self incapacitation, and (iii) police displacement. In this paper I exploit information on football (soccer) matches for nine London teams linked to detailed recorded crime data...

This paper examines sorting into interracial friendships at selective universities. We show significant friendship segregation, particularly for blacks. Indeed, black friendships are no more diverse in college than in high school despite the colleges blacks attend having substantially smaller...