Bloomberg: The intolerable surge in rice prices presents Asia with a rather unpleasant dilemma. Rough rice prices have doubled in the past year on the Chicago Board of Trade. Nutritionally, it’s the most important cereal for the Asian region, supplying between a quarter and 73 percent of all calories consumed in China, India, Pakistan, Bangladesh, Indonesia, Thailand, Sri Lanka and Cambodia, according to the International Rice Research Institute in Manila. It will be …