Following Garicano (2000), we consider groups whose members decide what knowledge to acquire and how to use this knowledge in production. If efficient production requires common knowledge, all group members should become workers and acquire common knowledge. But if efficient production requires...

Individual leaders have been central to the transformation of political institutions, organizations and many instances of social and economic reform. Why are some leaders able to take advantage of opportunities to successfully catalyze large-scale change while others fail? In this paper we argue...