A conjecture of Laffer, which had considerable influence on fiscal doctrine, is that tax revenues of a Leviathan state eventually decrease when the tax rate exceeds a threshold value. We conduct a real effort experiment, in which a "worker" is matched with a non-working partner, to elicit the...

The goal of this paper is to draw some lessons for economic theory from research in psychology, social psychology and, more briefly, in biology, which purports to explain the «formation» of social preferences. We elicit the basic mechanisms whereby a variety of social preferences are...

A simple model of informal learning on-the-job, which combines learning by oneself and learning from others, is proposed in this paper. It yields a closed-form solution that revises Mincer-Jovanovic's (1981) treatment of tenure in the human capital earnings function by relating earnings to the...