We test the importance of social norms for market interactions associated with negative real-world externalities in a large-scale experiment with a heterogeneous population sample from Germany. The majority of experimental participants refuses to trade, thus behaving in a moral way. Our data...

We investigate the elasticity of moral ignorance with respect to monetary incentives and social norm information. We propose that individuals suffer from higher moral costs when rejecting a certain donation, and thus pay for moral ignorance. Consistent with our model, we find significant...

Communal responsibility, a medieval institution studied by Greif (2006), supported the use of credit among European merchants in the absence of modern enforcement technologies. This paper shows how this mechanism helps to overcome enforcement problems in anonymous buyer/seller transactions. In a...

This paper studies how the swiftness and delay of punishment affect behavior. Using rich administrative data from automated speed cameras, we exploit two (quasi-)experimental sources of variation in the time between a speeding offense and the sending of a ticket. At the launch of the speed...

People with higher-incomes tend to support less redistribution than lower-income people. This has been attributed not only to self-interest, but also to psychological mechanisms including differing beliefs about the hard work or luck underlying inequality, differing fairness views, and differing...