In a diagram that shows the marginal product of labor on the vertical axis and labor on
the horizontal axis, the marginal product curve
A) never intersects the horizontal axis.
B) intersects the horizontal axis at a point corresponding to the 5th worker.
C) intersects the horizontal axis at a point corresponding to the 6th worker.
D) intersects the horizontal axis at a point corresponding to the 8th worker.
Sefronia and Bella share an apartment and they are deciding whether or not to purchase
a weekly housecleaning service. The value of the service to each of them is $50 and it
costs $80 to hire a housecleaner. Should they hire a housecleaner?
A) Yes, if each contributes $50, then each stands to gain a consumer surplus.
B) No, because each will wait for the other to hire the housecleaner.
C) Yes, but only if a housecleaner will accept $50 so that each can take turns to pay the
housecleaner.
D) No, because it will be difficult for them to agree on which housecleaning service to
use.