Jacob Levy has a nice post on the multiple sins of agricultural subsidies in the U.S., Japan and Europe. An extract:

When we talk about whether "globalization" and "global free trade" have helped or hurt the poorest people in the world, we're operating on a false premise-- that these phenomena have reached the products these people produce. Textiles, generally the first category of manufacturing any economy can productively reach, remain heavily protected in the industrial world, and have been specifically exempted from free-trade agreements and tariff-reduction deadlines up until now. But the situation is even worse with agriculture, where the rich-country policies not only eliminate the possibility of any export-driven growth by the poor but actually distort poor countries' internal agricultural markets. In other words, the subsidies and protections both discourage the most likely road to alleviating poverty in the future and encourage poverty in the present.

Go read the whole thing.