Which of the following statements is true?
A) Knowledge of economics complicates decision making.
B) Economics is more of a theoretical subject with limited applications in the real world.
C) Testing with data is essential to develop a good theory.
D) Cost-benefit analysis can be applied only to limited economic decisions.
C
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Identify the 3 curves in the above figure
A) (1 ) is long-run aggregate supply, (2 ) is short-run aggregate supply, (3 ) is aggregate demand. B) (1 ) is aggregate demand, (2 ) is short-run aggregate supply, (3 ) is long-run aggregate supply. C) (1 ) is short-run aggregate supply, (2 ) is long-run aggregate supply, (3 ) is aggregate demand. D) (1 ) is long-run aggregate supply, (2 ) is aggregate demand, (3 ) is short-run aggregate supply.
When perfectly competitive firms in an industry are earning positive economic profits, a. we would expect entry into the industry
b. we would expect stability in the industry, since it is in long run equilibrium. c. we would expect exit from the industry. d. we do not know whether there would tend to be entry, exit, or stability in the industry.
Antitrust laws are designed to
a. preserve competition. b. protect the environment. c. protect the public's trust in the government. d. all of the above.
Your roommate, Serafina, a psychology major, said, "The problem with economics is that it assumes that consumers and firms always make the correct decision. But we know that everyone's human, and we all make mistakes." Do you agree with her comment?
A) Yes, I agree with her. One cannot make predictions about economic behavior because in reality people make incorrect choices in many situations.
B) I disagree with her. Economics does not study correct or incorrect behaviors but rather it assumes that economic agents behave rationally, meaning they make the best decisions given their knowledge of the costs and benefits.
C) Yes, I agree with her. Economic theory should allow for irrational behavior so that we can have more reliable predictions.
D) I disagree with her. If we cannot assume that decisions are correct, then we will not be able to examine the moral implications of these decisions.