During the intense volatility that prevailed in commodity futures markets in 2007, 2008 and again in 2011, it was commonly asserted that the volatility was intensified or even created by the activity of entities having no relationship with the commodities that underlay the futures markets. As the result of such activities, it was charged that the prices of underlying commodities were inflated, thus raising the cost of products produced from the commodities, especially the costs of food and energy.This new breed of market players trading commodity futures included banks, institutional investors, pension funds, sovereign funds created by governments, university endowments and foundations. Also involved were investment funds known as index f...