We adopt a multi-country setup to show that years of schooling have a causal protective effect on the body mass index of females living in nine European countries. No such effect is found for males. The protective effect for European females is not negligible but is smaller than one recently...

We study subjects who were asked to fill letters into envelopes with a remuneration independent of output. In the "pair" treatment, two subjects worked at the same time in the same room, and peer effects were possible. In the "single" treatment, subjects worked alone, and peer effects were ruled...

An important component of the long-run cost of a war is the loss of human capital suffered by school-age children who receive less education. Austrian and German individuals who were 10 years old during the conflict, or were more directly involved through their parents, received less education...