If the average product of labor is falling, it implies that the marginal product of labor must be falling (Choice C), because the marginal product would have to be less than the average product for the average to decrease.
When analyzing the relationship between the marginal product of labor (MP) and the average product of labor (AP), we understand that MP represents the additional output produced by one more worker, while AP is the total output produced divided by the number of workers. If the marginal product of labor first rises and then falls, and we are told that the average product of labor is falling, the correct statement from the options provided would be C) The marginal product of labor must be falling. This is due to the fact that for the average product to decrease, the marginal product must be less than the average product.
When AP is declining, the MP must be less than the AP because if MP were greater than AP, the average would rise. Therefore, we can deduce that the MP is not greater than the AP, the level of output is not necessarily at its maximum, the MP is not necessarily negative, and the AP may not have yet reached its maximum. The key indicator here is the effect of the additional worker on the AP, which declines only when the MP is less than the current AP.
Complete Question:
Assume the marginal product of labor first rises, reaches a maximum, and then falls. If the average product of labor is falling, which of the following is true?
A) The marginal product of labor is greater than the average product of labor.
B) The level of output produced must be at its maximum.
C) The marginal product of labor must be falling.
D) The marginal product of labor must be negative.
E) The average product of labor has not yet reached its maximum.