There are a couple of reasons for why the empire didn't last. One of those reasons is that the empire was too great (big). Because the empire was too huge, it was divided into different parts after Alexander's death. He also didn't have an heir to the throne, so when he died, officials fought for power and to become king, which also contributed to the fall of the empire as well.
A socialist economy is a system of production where goods and services are produced directly for use, in contrast to a capitalist economic system, where goods and services are produced to generate profit (and therefore indirectly for use). "Production under socialism would be directly and solely for use.
Explanation:
In the provinces were divided into Chinese judged by chief;Under the chief were the head responsible for the villages. The Empire has had a fixed army, where the main duty was to defend/develop the empire. The king/Caesar was a symbol of the unit because he was half-divine.