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Barrels, Bushels, and Bonds

CAMBRIDGE – The prices of hydrocarbons, minerals, and agricultural commodities have been on a veritable roller coaster. While commodity prices are always more variable than those for manufactured goods and services, commodity markets over the last five years have seen extraordinary, almost unprecedented, volatility.

Countries that specialize in the export of oil, copper, iron ore, wheat, coffee, or other commodities have been booming, but they are highly vulnerable. Dollar commodity prices could plunge at any time, as a result of a new recession, an increase in real interest rates in the United States, fluctuations in climate, or random sector-specific factors.