This paper studies moral hazard in a sickness-insurance fund that provided the model for socialinsurance schemes around the world. The German Knappschaften were formed in the medieval period to provide sickness, accident, and death benefits for miners. By the mid-nineteenth century,...

In our days, German machine tool makers accuse their Chinese competitors of violating patent rights and illegally imitating German technology. A century ago, however, German machine tool makers used exactly the same methods to imitate American technology. To understand the dynamics of this...

The German population's material standard of living during the 'peace years' of the Nazi regime (1933-38) is much debated. We use hitherto disregarded consumption data and the axiom of revealed preferences to test whether the material standard of living improved. We find that the food...

The Knappschaft underlies Bismarck's sickness and accident insurance legislation (1883 and 1884), which in turn forms the basis of the German social-insurance system today and, indirectly, many social-insurance systems around the world. The Knappschaften were formed in the medieval period to...