When the government's rice mortgage market volume one. Volume of rice in the market, making less. So they want to buy more. Grain prices rise as market mechanisms.
When the Government received a pledge from the rice market volume. The quantity of rice, less market man, thus making the purchase requirement. Higher rice prices by mechanical laitlat
When the government is pledged amount of rice out of the market, and then make one of the default, the rice market is less, and you want to buy more high prices of rice, the market, water gadgets,