The world food supply was originally redundant, but when the economy was overheated and oil prices were high in the last Millennium, major food exporting countries such as the United States used a large amount of exported grain to produce alcohol for automobiles, which caused food shortages in many countries, especially those that relied heavily on imports, and food prices rose with the rise of oil. I don't need to explain the reason for the decline now. The main reason for the price reduction of oil is the reduction of demand in various countries.

The decline I am talking about is the decline in international food prices, which cannot be considered by domestic factors.

In addition, from the perspective of national security, countries have also increased the planting area of grain and subsidies to farmers. China is a special case. In addition, China implements a quota system for the import and export of grain, that is, you can export as much as the state tells you, and you can import as much as you want.

Therefore, food prices at home and abroad are very different. If the country does not restrict exports, the conservative rice price is also near 3 yuan.

The scale of foreign exchange reserves is related to the trade surplus, and the way to control it is to encourage China people to invest abroad if it is too much. I don't want to say that a country without foreign exchange is very difficult. Like North Korea.