WASHINGTON -- Finance ministers gathered this weekend to grapple with the global financial crisis also struggled with a problem that has plagued the world periodically since before the time of the Pharaohs: food shortages.

Surging commodity prices have pushed up global food prices 83% in the past three years, according to the World Bank -- putting huge stress on some of the world's poorest nations. Even as the ministers met, Haiti's Prime Minister Jacques Edouard Alexis was resigning after a week in which that tiny country's capital was racked by rioting over higher prices for staples like rice and beans.

Rioting in response to soaring food prices recently has broken out in Egypt, Cameroon, Ivory Coast, Senegal and Ethiopia. In Pakistan and Thailand, army troops have been deployed to deter food theft from fields and warehouses. World Bank President Robert Zoellick warned in a recent speech that 33 countries are at risk of social upheaval because of rising food prices. Those could include Indonesia, Yemen, Ghana, Uzbekistan and the Philippines. In countries where buying food requires half to three-quarters of a poor person's income, "there is no margin for survival," he said.

Summary:  Even critics of Hugo Chávez tend to concede that he has made helping the poor his top priority. But in fact, Chávez's government has not done any more to fight poverty than past Venezuelan governments, and his much-heralded social programs have had little effect. A close look at the evidence reveals just how much Chávez's "revolution" has hurt Venezuela's economy -- and that the poor are hurting most of all.

FRANCISCO RODRÍGUEZ, Assistant Professor of Economics and Latin American Studies at Wesleyan University, was Chief Economist of the Venezuelan National Assembly from 2000 to 2004.