The circular-flow diagram is an example of
A. a laboratory experiment.
B. an economic model.
C. a mathematical model.
D. All of the above are correct.
查看答案
A circular-flow diagram is a model that
A. helps to explain how participants in the economy interact with one another.
B. helps to explain how the economy is organized.
C. incorporates all aspects of the real economy.
D. Both (a) and (b) are correct.
In the simple circular-flow diagram, the participants in the economy are
A. firms and government.
B. households and firms.
C. households and government.
D. households, firms, and government.
Factors of production are
A. the mathematical calculations firms make in determining their optimal production levels.
B. social and political conditions that affect production.
C. the physical relationships between economic inputs and outputs.
D. inputs into the production process.
一个显示货币如何在家庭和企业之间流动的模型称为
A. 生产可能性边界。
B. 循环流量图。
C. 供需图。
D. 比较优势模型。
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