Predictably, China is now reaping the same results that high-price support farm policies produced years earlier in the U.S. and EU. The Chinese government's reserve now holds enormous stocks of expensive grain that will surely grow larger in 2015/16.The philosopher George Santayana once wrote that "those who cannot remember the past are condemned to repeat it." Although perhaps not what he had in mind, this observation can be applied to the causes and effects of certain national domestic agricultural policies. The political influence of agricultural producers has led some governments to adopt farm policies designed to support their incomes. This happened famously in the U.S. with government programs of high price supports for major field cr...