We propose evolutionary dynamics to show how rules converge into norms. Individuals play a game of upholding or rejecting a rule, and the more they uphold the rule, the more it becomes established as a norm. We find that when individuals are rational, the initial state determines whether the...

In <i>War, Wine, and Taxes</i>, John Nye debunks the myth that Britain was a free-trade nation during and after the industrial revolution, by revealing how the British used tariffs--notably on French wine--as a mercantilist tool to politically weaken France and to respond to pressure from local brewers...