Identify the three main types of economic systems.

Identification should include

Process/Skill Questions:

What is the primary economic system in the United States?
What is the difference between centralized and decentralized economic decision making?
What are the essential roles of government in a market economy?
How does a government enforce property rights?
How does a government prevent concentration of economic power?
Who primarily determines how businesses are operated in a free-enterprise system?
What is the role of trade in agriculture?