The concepts of cultural diversity and cultural identity are at the forefront of the political debate in many western societies. In Europe, the discussion is stimulated by the political pressures associated with immigration flows, which are increasing in many European countries. The imperatives...

How can economists define and measure social preferences and interactions? Through the use of new economic data and tools, our contributors survey an array of social interactions and decisions that typify homo economicus. Identifying economic strains in activities such as learning, group...