题目内容

[单选] Taxes on labor encourage all of the following except

A. older workers to take early retirement from the labor force.
B. mothers to stay at home rather than work in the labor force.
C. workers to work overtime.
D. people to be paid “under the table.”

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[单选]A tax placed on a good

A. causes the effective price to sellers to increase.
B. affects the welfare of buyers of the good but not the welfare of sellers.
C. causes the equilibrium quantity of the good to decrease.
D. creates a burden that is usually borne entirely by the sellers of the good.

[单选]小麦农民种大麦而不种小麦能挣的钱是

A. 显性成本。
B. 会计成本
C. 隐性成本
D. 放弃的会计利润。

[单选] The graph illustrates a typical

A. total-cost curve.
B. production function.
C. production possibilities frontier.
D. fixed-cost curve.

[单选] The changing slope of the total cost curve reflects

A. decreasing average variable cost.
B. decreasing average total cost.
C. decreasing marginal product.
D. increasing fixed cost.

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