None currently
command
To maintain control of the economy and the people that live there.
There is no such thing as a Communist government or a Communist economy. Communism means no classes, no government, no money.
command economy
It's not. Communism is a type of an economy. The UN does not have a government or an economy. It is a body where representatives of nations meet. Some of those countries are communist (fewer an fewer).
Communism will have to be a worldwide system, with no countries or borders, as well as no classes or government.
No, the US has a market economy a result of its capitalist policies, command economies can be found in communist countries.
command economy
No countries have or could have a Communist economic system. Communism is a classless stateless society based on production for use, with no money and no economy. Also, it would have to operate at a global level.
Some countries that use a market economy are:United StatesWestern EuropeWestern Germany
Communism means a classless stateless society based on production for use. No prices, no wages, no money, hence no economy.