The commodities market has done a complete 180, and the market for the bare ingredients that make the world turn have fallen, taking related stocks and exchange traded funds (ETFs) on a downward slide.

The commodity bull market of the past seven years has ended its run, as the financial panic sweeps across the globe and has filtered its way into consumers pockets and wallets.

Clifford Krause for The New York Times reports that the prices for many commodities peaked amid fears of permanent shortage that goes along with surging global demand. Staples such as wheat and corn have since dropped more than 40%.

Oil has also fallen 44%, and metals such as aluminum, copper, iron and nickel have tumbled by one-third or more.

The trend seems to be downward as traders weigh the prospect that the global economic crisis will lead to sharp drops in demand.

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