问题
单项选择题
Which of the following most accurately describes the typical relationship between marginal product (MP) and average product (AP) As the quantity of labor increases:（）
A. initially, AP ＜ MP, then AP = MP, then AP ＞ MP.
B. initially, AP = MP, then AP ＞ MP.
C. AP is always less than MP.
答案
参考答案：A
解析：
MP intersects the AP minimum from above. MP is initially greater than average product, and then MP and AP intersect. Beyond this intersection, MP is less than AP. (Hint: sketch the curves. )