Fill in the gaps with the most suitable word or expression

Communism is a political and economic doctrine which says that everything must belong to the state and the government is to organize all the production. Karl Marx formulated his idea of communism as «from each according to his ability, to each according to his needs». Command economy where strategic decisions are made by government and regulated by the price system relied on the communist doctrine. China is still  organizing its economy along communist lines but Russia and other former (бывший) Soviet Union's countries and East-European countries have recently moved away to more market-based economies.

1. All resources allocation decisions were made by the government in the Soviet Union.
2. Consumption and production are regulated by prices in a market economy
3. In a mixed economy exchange of goods isn't entirely regulated by the government.
4. The prices and levels of consumption of different goods and services are being monitored by the economists.
5. Society's production and consumption levels are analysed by economics.
6. A decision to start producing new machines has been made by the company.
7. The ideas of Karl Marx had been studied and discussed by economists for over sixty years before they were put into life by Russians.
8. If enough resources are allocated by us to agriculture, a high level of production will be achieved.