The Perils of Efficiency.(The Talk of the Town)

This spring, disaster loomed in the global food market. Precipitous increases in the prices of staples like rice (up more than a hundred and fifty per cent in a few months) and maize provoked food riots, toppled governments, and threatened the lives of tens of millions. But the bursting of the commodity bubble eased those pressures, and food prices, while still high, have come well off the astronomical levels they hit in April. For Americans, the drop in commodity prices has put a few more bucks in people's pockets; in much of the developing world, it may have saved many from actually starving. So did the global financial crisis solve the global food crisis?

Temporarily, perhaps. But the recent price drop doesn't provide any long-term respite from the threat of food shortages or future price spikes. Nor has it reassured anyone about the health of the global agricultural system, which the crisis revealed as dangerously unstable. Four decades after the Green Revolution, and after waves of market reforms intended to transform agricultural production, we're still having a hard time insuring that people simply get enough to eat, and we seem to be more vulnerable to supply shocks than ever.

It wasn't supposed to be this way. Over the past two decades, countries around the world have moved away from their focus on "food security" and handed market forces a greater role in shaping agricultural policy. Before the nineteen-eighties, developing countries had so-called "agricultural marketing boards," which would buy commodities from farmers at fixed prices (prices high enough to keep farmers farming), and then store them in strategic reserves that could be used in the event of bad harvests or soaring import prices. But in the eighties and nineties, often as part of structural-adjustment programs imposed by the I.M.F. or the World Bank, many marketing boards were eliminated or cut back, and grain reserves, deemed inefficient and unnecessary, were sold off. In the same way, structural-adjustment programs often did away with government investment in and subsidies to agriculture--most notably, subsidies for things like fertilizers and high-yield seeds.

The logic behind these reforms was simple: the market would allocate resources more efficiently than government, leading to greater productivity. Farmers, instead of growing subsidized maize and wheat at high cost, could concentrate on cash crops, like cashews and chocolate, and use the money they made to buy staple foods. If a country couldn't compete in the global economy, production would migrate to countries that could. It was also assumed that, once governments stepped out of the way, private investment would flood into agriculture, boosting performance. And international aid seemed a more efficient way of relieving food crises than relying on countries to maintain surpluses and ...