单选题
As the quantity of labor increases, which of the following is the most likely outcome with respect to the marginal revenue (MRP) of labor?
A、
MRP increases for a monopoly.
B、
MRP decreases for a firm in perfect competition.
C、
MRP increases for both monopoly and a firm in perfect competition.
【正确答案】
B
【答案解析】
[解析] 在边际产量递减规律的作用下，随着劳动数量的增长，完全竞争厂商的边际收益产品(MRP)将相应下降。
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