Answer:
The communist ideology basically advocates for the existence of a command economy, where the government (group of statesmen) decide how to allocate resources in order to produce the goods and services that they consider will satisfy the needs of the population.
Communism is the opposite of free market, and even though no country is 100% communist (not even North Korea or Cuba) and no country 100% free market, most countries lean one way or the other. Currently we can say that capitalism, which is the closest to a free market system, has won not only the ideological battle against communism but also the economic battle.
Basically the whole world embraces capitalism, and that is a great change from 30-40 years ago. The problem with communism is the existence of the "more equal people" who live like billionaires and enjoy the luxuries of the decadent western empire (AKA USA), while the rest of the population lives in absolute poverty. More than an ideology, communism was a business venture that created some of the most powerful individuals in the world while consuming a country's resources for the benefit of very few.
One thing is certain, the market knows better, and the involvement of the government in economics should always be limited to the bare essentials.