The problem of grain in China is a very important thing. Our country has not much arable land, but the biggest population in the world, and it still belongs to developing countries. The above are the basic features of performance system of the grain economy. The lack of grain often influences the whole national economy so that the problems of social safety and government stability rise. The surplus of grain makes too much stock of grain stay in the storehouses of the government owned grain firms, and the bu...