http://www.businessweek.com/globalbiz/content/apr2008/gb20080423_366709_page_2.htm "Sudden price hikes since last January have been alarming. The UN estimates that at least $500 million (€312 million) in immediate aid will be needed by May 1 to avoid serious famines. Agricultural scientists at the world body's Educational, Scientific and Cultural Organization (UNESCO) have presented a report on the world food crisis. And criticism is growing that hedge funds, index funds, pension funds and investment banks bear part of the blame. "
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"What we normally have is a predictable group of sellers and buyers—mainly farmers and silo operators," he says. But the landscape has changed since the influx of large index funds. Fund managers seek to maximize their profits using futures contracts, and prices, says Warner, "keep climbing up and up."
He's calculated that financial investors now hold the rights to two complete annual harvests of a type of grain traded in Chicago called "soft red winter wheat."
Wagner is stunned by such developments. He sees them as evidence that capitalism is literally consuming itself.