The nation which has a communist command economy is North Korea. hence choice 2nd is correct.
What is a command economy?
The fundamental tenet of a command economy is that centralized authority and the government control the economy. They get to make economic decisions like how many automobiles should be produced or how resources should be allocated among society's members.
A command (centralized) economy is present in North Korea. All means of production are under the jurisdiction of the state, and economic development is given top priority by the government.
A number of national economic plans have been used to implement economic policy since 1954.
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