10. A
economy is one that is part command and part market economy.

A mixed economy has features of both command and free market economies. For example, the United States allows free markets to happen such as the stock market, but there are regulations in place to make sure things don't get out of hand.

A purely command economy would have the government setting prices, determining how much of a product to make, etc. An example of this would be the USSR (Soviet Russia).

A purely free market economy would have no government input and it would be solely up to the market, ie people in the marketplace, to determine prices and things like that.

when the chinese communist party took power in 1949, it began to build new di and levees to hold the yellow and yangtze rivers back.