The Cobden-Chevalier treaty of 1860 eliminated many French import prohibitions and lowered tariffs between France and Britain. Policy change was largely unexpected and unusually free from direct lobbying. A series of commercial treaties with other nations followed because of the use of the...

A large literature has documented an association between economic growth and export diversification. We study this question in France between 1836 and 1938. The period witnessed the onset of modern economic growth and sharp changes in the level of international competition. We use a new long...