FILE - In this March 27, 2012 file photo, workers use combines to harvest soybeans in Tangara da Serra, State of Mato Grosso, Brazil. For more than a decade, Brazil has been one of the developing world's great hopes, outpacing the growth of Western Europe and the U.S. Many even predicted it would soon become an economic superpower, but now analysts generally believe the big boom is past. Prices for exported commodities such as iron ore and soybeans are drooping due to concerns over Chinese growth. (AP Photo/Andre Penner, File)

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