To be effective, countercyclical fiscal policy must be temporary

Figure 3-21

Refer to . At the quantity Q₃,
a.
the market is in equilibrium.
b.
consumer surplus is maximized.
c.
the sum of consumer surplus and producer surplus is maximized.
d.
the value to buyers is less than the cost to sellers.

Refer to the table shown. Marginal product declines when which worker is hired?Number of workersMarginal product of workers1225394145166177188189171015 

A. The 6th worker B. The 7th worker C. The 9th worker D. The 5th worker