This article discusses Alvin Roth’s research about moneyless markets, and in particular about the manner in which kidneys are allocated to patients needing transplants. As Titmuss pointed out for blood transfusions, providing monetary incentives to blood donors may crowd out supply, since...

In a comment to Dahlberg, Edmark and Lundqvist (2012), Nekby and Pettersson-Lidbom (2012) argue (i) that the refugee placement program should be measured with contracted rather than actually placed refugees, and claim that the correlation between the two measures is insignificant and close to...

Economists are increasingly interested in how group membership affects individual behavior. The standard method assigns individuals to "minimal" groups, i.e. arbitrary labels, in a lab. But real group often involve social interactions leading to social ties between group members. Our experiments...

Terror management theory (TMT) states that mortality salience prompts people to follow cultural standards. But many cultures value both generosity and accumulation of wealth. Combining TMT with the focus theory of normative conduct, we suggest that whether mortality salience encourages...

We explore network effects on generosity for different network dimensions. To this end we elicit multiple network dimensions (friendship, social support, economic exchange, etc.) in a rural village in the Southern hemisphere and measure generosity with a sequence of dictator games conducted in...

Based on three large panel surveys, this paper shows that happiness gaps between spouses are a good predictor of future divorce. The effect of happiness gaps is asymmetric: couples are more likely to break-up when the woman is the less happy partner. De facto, divorces appear to be initiated...

In a comment to Dahlberg, Edmark and Lundqvist (2012), Nekby and Pettersson-Lidbom (2012) argue (i) that the refugee placement program should be measured with contracted rather than actually placed refugees, and claim that the correlation between the two measures is insignificant and close to...

In recent decades, the immigration of workers and refugees to Europe has increased substantially, and the composition of the population in many countries has consequently become much more heterogeneous in terms of ethnic background. If people exhibit in-group bias in the sense of being more...

This paper asks whether the gap in subjective happiness between spouses matters per se, i.e. whether it predicts divorce. We use three panel databases to explore this question. Controlling for the level of life satisfaction of spouses, we find that a higher satisfaction gap, even in the first...

This lecture, delivered by Jean Tirole at the 2008 afse Congress and based on joint work with Roland Bénabou, revisits the old debate on the effectiveness of incentives, focusing on how the latter impact the perception and meaning of acts. It explains how a principal?s organizational choices...