This paper studies moral hazard in a sickness-insurance fund that provided the model for social-insurance 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, participation in the Knappschaft was compulsory for workers in mines and related occupations, and the range and generosity of benefits had expanded considerably. Each Knappschaft was locally controlled and self-funded, and their admirers saw in them the ability to use local knowledge and good incentives to deliver benefits at low cost. The Knappschaft underlies Bismarck’s sickness and accident insurance legislation (1883 and 1884), which in turn forms the basis of the German... |