This paper analyzes peer effects among university scientists. Specifically, it investigates whether the number of peers and their average quality affects the productivity of researchers in physics, chemistry, and mathematics. The usual endogeneity problems related to estimating peer effects are...

Family income is found to be more closely related to sons' earnings for a cohort born in 1970 compared to one born in 1958. This result is in stark contrast to the finding on the basis of social class; intergenerational mobility for this outcome is found to be unchanged. Our aim here is to...

It is well documented that graduates enter different occupations in recessions than in booms. In this article, we examine the impact of this reallocation for long-term productivity and output across sectors. We develop a model in which talent flows to stable sectors in recessions and to cyclical...

Tournaments are designed to enhance participants' effort and productivity. However, ranking near the top may increase psychological pressure and reduce performance. We empirically study the impact of interim rank on performance using data from international diving tournaments. We find that...

The issue of the nature of the altruism inherent in blood donation and the perverse effects of financial rewards for blood and/or organ donation has been recently revisited in the economic literature with limited consensus. As Titmuss (1970) famously pointed out, providing monetary incentives to...

We present a theory of ethnic conflict in which coalitions formed along ethnic lines compete for the economy's resources. The role of ethnicity is to enforce coalition membership: in ethnically homogeneous societies members of the losing coalition can defect to the winners at low cost, and this...

Economists have a well-developed theory of value but the theory of why people hold the values they do is rudimentary at best. In spite of the fact that it is common to argue that values are important, most work on values is normative and the positive theory of values is relatively under-...

There is a lot of evidence that identity matters for behavior. There is a widespread belief that societies will function better if they manage to establish a common sense of identity among the population. And there are also contemporary fears that this common identity is threatened in several...

Using a unique dataset we study both the actual and self-perceived relationship between subjective well-being and income comparisons against a wide range of potential comparison groups, enabling us to investigate a broader range of questions than in previous studies. In questions inserted into a...