Since the post-World War II era and the establishment of the General Agreement on Tariffs and Trade (GATT) and its successor, the WTO, there has been one general rule of thumb: economic growth in developing countries drives commodity demand, be it for energy, raw materials or agriculture and food. Looking ahead at the next decade that trend is not likely to go away. World GDP is now about $121 trillion in real inflation adjusted 2010 dollars, with the 36 countries of Organization for Economic Cooperation and Development (OECD) accounting for about 43 percent. The remaining 57 percent of GDP is accounted for by non-OECD countries, many of them developing economies. Over the next 10 years, that gap will expand to non-OECD countries accountin...