Economists make assumptions to
A. provide issues for political discussion.
B. make a complex world easier to understand.
C. make it easier to teach economic concepts and analysis.
D. create policy alternatives that are incomplete or subject to criticism.
查看答案
A circular-flow model and production possibilities frontier are similar in that
A. neither allows economic analysis to occur.
B. neither can be represented visually on a graph.
C. both make use of assumptions.
D. both make use of complex equations to arrive at solutions.
In building economic models, economists often omit
A. assumptions.
B. theories.
C. details.
D. equations.
Economic models
A. are not useful because they omit many real-world details.
B. are usually composed of diagrams and equations.
C. are useful because they do not omit any real-world details.
D. are usually plastic representations of the economy.
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.
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