If a firm in a monopolistically competitive market has a demand curve that is shifting to the right, it will only stop shifting when:
A. the firm's price is equal to its average total costs.
B. the firm is earning zero economic profits.
C. other firms have no incentive to leave the market.
D. All of these statements are true.
Answer: D
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If individuals who sit in the back of the classroom receive lower grades on average than the rest of the class, does that mean that sitting in the back of a classroom causes one to perform poorly on exams? a. Not necessarily. The reoccurrence of a certain relationship between two variables does not necessarily imply causation. b. It is not possible for an economist to determine causation
between variables. c. The reoccurrence of such a relationship is sufficient evidence that sitting in the back of a classroom will lead to lower grades. d. none of the above
Suppose a country attempts to be self-sufficient and doesn't trade with any other countries. From an economic perspective, citizens of this nation can be expected to
a. gain materially from this policy because they can consume more goods over time than if they engaged in trade with foreigners. b. produce less total value than they could if they specialized and engaged in trade with other nations. c. gain from more rapid growth since home markets are reserved for home producers. d. be just as well off without trade since the value of what is sent to other nations in trade just equals the value of what is received in trade.
There is no market supply curve in:
A. monopolistically competitive and monopolistic markets. B. a perfectly competitive market. C. a monopolistically competitive market. D. a monopolistic market.
When firms in a U.S. industry outsource some of their production,
A) both U.S. labor demand and U.S. wages in the industry fall B) U.S. labor demand falls, but U.S. wages are not affected. C) U.S. labor demand remains unchanged, but U.S. wages fall. D) U.S. labor demand falls, but U.S. wages increase.