Eswar Prasad, a former official at the International Monetary Fund and a senior fellow at the Brookings Institution, the liberal-leaning research organization in Washington said Malaysia are one of the countries that would be in serious trouble as US dollar rises.

In a report released Sunday, the World Bank predicted that the global economy would shrink in 2009 for the first time in more than half a century and forecast that global trade would decline for the first time since the early 1980s.

“Depreciation isn’t enough now to offset the global contraction,” said Mr. Setser, noting that export powers like Japan, Korea, Taiwan and Brazil have had rapid declines in sales in recent months. “Everybody’s looking vulnerable. All commodity exporters are potentially subject to currency crises.”

Fears are growing that a much broader group of countries will plunge into trouble. Mr. Prasad’s list of potential danger zones includes Vietnam, the Philippines, Malaysia and Indonesia, as well as Pakistan and Ecuador.