问题
单项选择题
Which of the following changes would most likely decrease a firm’s demand for labor （）
A. Technological improvement in the firm’s production process.
B. Decrease in the price of the firm’s product.
C. Increase in the price of a productive input that is a substitute for labor.
答案
参考答案：B
解析：
If the price of the firm’s product decreases, its marginal revenue, and therefore the marginal revenue product of its inputs, will also decrease. This will decrease the firm’s demand for labor. The other choices describe events that would be likely to increase the firm’s demand for labor.