Obesity has become a major health issue. Research in economics has provided important insights as to how technological progress reduced the relative price of food and contributed to the increase in obesity. However, the increased availability of food might well have overstrained will power and...

Social norms are usually neglected in economics, because they are to a large extent enforced through non-market interactions and difficult to isolate empirically. In this paper, we offer a direct measure of the social norm to work and we show that this norm has important economic effects. The...