Final answer:
According to Karl Marx's idea of communism, there are no true communist economies where all people contribute according to their abilities and consume according to their needs.
Step-by-step explanation:
According to Karl Marx's idea of communism, there are no true communist economies where all people contribute according to their abilities and consume according to their needs.
Marx's vision of communism involved the establishment of a dictatorship of the proletariat, which is a socialist state that would govern during the transition to communism. In this socialist state, resources and production would be owned and controlled by the government, and wealth would be distributed more equally.
However, in practice, no country has successfully achieved Marx's vision of communism where everyone contributes and consumes based on abilities and needs. The countries that have identified themselves as communist, such as China, Cuba, Laos, North Korea, and Vietnam, have all experienced varying degrees of inequality and government control over resources.