Last year the price of corn was $3 a bushel and the quantity of corn demanded was 10 million bushels. This year the price of corn was $4.00 a bushel and the quantity demanded was 9 million bushels. Is this evidence that law of demand does not apply to
corn?
A. Yes, because there is a direct relationship between the price of corn and the quantity supplied
B. Yes, because there is an inverse relationship between the price of corn and the quantity demanded
C. No, because the other-things-equal assumption was violated over the two year period
D. No, because the evidence indicates that there is a shortage of corn
Answer: C
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The use of chlorofluorocarbons in refrigerators and air conditioners is alleged to cause the destruction of the ozone layer that surrounds the earth. This layer protects humans from ultraviolet radiation, which causes skin cancer. Industry has been prohibited from using these substances in aerosol cans, but the government has been reluctant to ban their use altogether because of the serious
economic consequences. Economists analyze such problems and refer to them as a. issues of unfairness. b. examples of excess abstraction. c. externalities. d. comparative advantage issues. e. examples of trade-offs between output and equality.
Fred Monroe is a fisherman in the perfectly competitive fish industry in northern Minnesota. After years of experience, he knows that the demand curve for the fish he sells is
a. horizontal b. vertical c. downward sloping d. the same as the industry demand e. upward sloping