Guilds ruled many crafts and trades from the Middle Ages to the Industrial Revolution, and have always attracted debate and controversy. They were sometimes viewed as efficient institutions that guaranteed quality and skills. But they also excluded competitors, manipulated markets, and blocked...

Institutions - the structures of rules and norms governing economic transactions - are widely assigned a central role in economic development. Yet economic history is still dominated by the belief that institutions arise and survive because they are economically efficient. This paper shows that...