The answer to this specific question is Socialism, not Communism. According to Marx, after the revolution by the proletariat working class, the means of production would be seized by the workers and a government set up by the proletariat. This government would own all property. Eventually, Communism would evolve and there would be no government. Thus any situation where there even IS a government would not be Marx's vision of communism.
Yes, the future economic trends are usually influenced by the economic theories.
Keynesian theory
No; not according to some economic theories. Yes; according to some economic theories.
The massive debt a government can amass over a period of time while employing Keynesian economic theories. e.g. the United States of America.
removing regulations regarding business practice in the baking industry
removing regulations regarding business practice in the baking industry
economic models
Marshall's economic theories, although very elaborate, have been viewed as eclectic and lacking in internal consistency.
Religion influenced the application of economic theories in a huge way. In the olden days, people valued religion and would follow whatever guidance religion provided and that is how it gained so much power even in economic theories.
The economic case for regional integration is straightforward. Economic theories of international trade predict that unrestricted free trade will allow countries to specialize in the production of goods and services that they can produce most efficiently.
Generally, economic theories of all types and ideology have three principle effects on social welfare: 1) the total amount of wealth in that society; 2) the institutions, methods, and production which that wealth is invested in; 3) the distribution of that wealth amongst society's members. Economic theories propose and define how resources are organised to produce desired outcomes. With these outcomes, theories define what powers or methods will control or invest this wealth. Finally, the theories determine what obligations society has to its members and how these obligations are met. In terms of development, theories differ greatly because they advocate different methods, institutions, and distributions of income - all of which affect how a society develops economically.
the chronological order of economic theories