Antitrust laws give the Justice Department the authority to challenge potential mergers between companies in an effort to safeguard society from monopoly power

The equilibrium level of GDP is the level at which

a. aggregate demand exceeds output. b. aggregate demand equals output. c. aggregate demand is less than output. d. inventories are being depleted to meet demand.

Andre, a wheat farmer, is deciding whether or not to add fertilizer to his crops. If he adds 1 pound of fertilizer per acre, the value of the resulting crops rises from $80 to $100 per acre. According to marginal analysis, Andre should add fertilizer if it costs less than

a. $12.50 per pound. b. $20 per pound. c. $80 per pound. d. $100 per pound.