单选题 Hay farmers are in a perfectly competitive market. Assume that each acre of land produces 100 bushels of hay. The marginal revenue product of an acre of land is then:

A、

A. (price of hay per bushel)/100.
B、

B. price of hay per bushel.
C、

C. 100 × (price of hay per bushel).

【正确答案】 C

【答案解析】The marginal revenue product of an input is the extra revenue generated by an additional unit of that input, which is an acre of land in this case. If the firm is a price taker, then the additional output from the additional input does not change the price of the final good. Thus, the marginal revenue product is simply the extra output times the price of the output.