The possibility that the economy may benefit from having market power, rather than being very competitive, is closely identified with which famous economist?

What combination of changes would most likely decrease the equilibrium price?

A. When supply decreases and demand increases B. When demand increases and supply increases C. When demand decreases and supply decreases D. When supply increases and demand decreases

Fiscal policy would be more effective if:

A. the government could change taxes and expenditures rapidly. B. potential income was unknown. C. the size of the government debt didn't matter. D. crowding out occurred more often.