A year-long drought that destroys most wheat crops for the season would shift the:
A. short-run aggregate supply curve only.
B. aggregate demand curve only.
C. aggregate demand curve, and the short-run aggregate supply curve would shift in response.
D. short-run aggregate supply curve and the long-run aggregate supply curve.
Answer: A
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The producer surplus on a unit of a good is
A) equal to the marginal benefit from the good minus its price. B) equal to the price of the good minus the marginal cost of producing it. C) always equal to consumer surplus. D) Both answers A and C are correct. E) Both answers B and C are correct.
If an industry's Herfindahl-Hirschman Index is less than 1, the industry is likely to be
A) competitive. B) an oligopoly. C) a monopoly. D) technologically inefficient.
In the figure above, the marginal rate of substitution (MRS) at point A is
A) greater than the MRS at any other point on the indifference curve. B) equals the MRS at all other points on the indifference curve. C) less than the MRS at any other point on the indifference curve. D) equal to the slope of the budget line.
Which of the following statements is correct?
a. If the buyer of a good gains, the seller must lose an equal amount. b. The value of goods is objective; it is equal to the cost of supplying the good. c. Opportunity costs will always be incurred when scarce resources are used to produce a good. d. Changes in incentives generally have no effect on human behavior.