Great Britain went through a protectionist phase in agriculture after the defeat of Napoleon in 1815, lasting for three decades until the repeal of the Corn Law in 1846. In food-importing Great Britain, the interruption of trade through Napoleon’s Continental Blockade had driven up food prices and farmers resisted the subsequent resumption of trade in peacetime. But the historic roots of continental agricultural protectionism, I always thought, were somewhat more recent, namely the transport cost revolution of the second half of the 19th century. As it became economically efficient to transport grain by train from the US Midwest to the East Coast, and then by ship to Europe, agrarian interests defended the higher rents on scarcer European land against the international convergence of factor prices.
However, I stumbled upon an intriguing paragraph by Findlay and O’Rourke (Power and Plenty, p. 374) that dates some continental agrarian protectionism back to Napoleonic wars: ‘in 1811, faced with the growing scarcity of sugar, Napoleon issued a decree promoting beet cultivation through a variety of means, leading to a rapid growth in the number of factories.… Read the rest

