how do socialist and communist economies system differ?

b. the amount of government ownership

Socialist economies typically involve a significant level of government ownership and control over the means of production and distribution of goods and services. Private ownership and competition may still exist to some extent but are heavily regulated by the government. On the other hand, communist economies have complete government ownership and control over all resources, industries, and economic activities. In a communist system, there is no room for private ownership and competition is abolished.