This paper shows that reciprocity has powerful implications for many economic domains. It is an important determinant in the enforcement of contracts and social norms and enhances the possibilities of collective action greatly. Reciprocity may render the provision of explicit incentive...

Research rankings based on publications and citations today dominate governance of academia. Yet they have unintended side effects on individual scholars and academic institutions and can be counterproductive. They induce a substitution of the “taste for science” by a “taste for...

This paper argues that the “Economics of Crime” concentrates too much on punishment as a policy to fight crime, which is unwise for several reasons. There are important instances in which punishment simply cannot reduce crime. Several feasible alternatives to punishment exist, such as...

Awards—widespread in the corporate sector and elsewhere—are motivators that derive their value from non-pecuniary concerns such as status and self-image. Quasi-experimental panel data from the call center of a large international bank allow us to estimate the causal impact on effort when...

Present anti-terrorist policy concentrates almost exclusively on deterrence. It seeks to fend off terrorism by raising the cost of undertaking terrorist acts. This paper argues that deterrence policy is less effective than generally thought and induces in some cases even more terrorism. This is,...

Deterrence has been a crucial element in fighting terrorism, both in actual politics and rational choice analyses of terrorism. But there are superior strategies to deterrence. One is to make terrorist attacks less attractive. Another to raise the opportunity cost – rather than the material...

Non-monetary incentives in the form of awards have so far escaped the attention of economists despite their widespread use. This paper presents an experiment conducted online at IBM to assess the impact of these kinds of extrinsic incentives. Introducing a hypothetical award has statistically...