NGUYEN NGOC HA, HOANG THUC LAN

In the 20^th century, the Soviet Union made changes to the mode of ownership twice: first, in 1936, a change from private to public ownership, and second, in 1985, a change from public back to private ownership. The transformations, stemming mainly from objective causes, were major events for the country and the world. In the world history, public ownership has existed and been appropriate in a small number of countries and for short periods of time, while private ownership has existed in many countries and for long periods of time. However, the two times of transforming ownership mode in the Soviet Union proved that no countries maintain either private or public ownership perpetually. policies for families today.