Rural couples grow and sell vegetables, earning tens of thousands of dollars a year and being self-sufficient.

This is a famous "natural economy" in the history of China. A self-sufficient economy is simple.

Land at home-means of production; There are cows and children-labor.

When the sun rises, it enters the day and has a rest. After a year of hard work, it will grow food. For the whole family to consume, if there is surplus, take it to the market and sell it for other necessities.

Self-sufficiency is a sign of underdeveloped productive forces, because it basically has no surplus, all of which is consumed by itself, and a small amount of surplus is also exchanged for necessities. There is no room for development. This natural economy once became one of the biggest factors that hindered the development of China. Including the famous warlord era in China's history, the fundamental reason is that "self-sufficient feudal natural economy dominates", because under the premise of self-sufficiency, a closed area can survive without communication with the outside world, which also forms a situation of warlord separatism.

Including the base areas of our ten-year revolution and War of Resistance against Japanese Aggression period, it also made full use of the self-sufficiency of the natural economy.