None currently
command
Two that i know of are China and Cuba.
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
To maintain control of the economy and the people that live there.
There is no member of the EEC that has adopted a communist economic system.
Angola has a communist economy!
There are no Socialist countries in Asia, nor could there be. Socialism is a classless stateless society based on production for use, and would have to exist on a global scale, with no countries or borders.