Which of the following statements about modern macroeconomic theory is most
accurate?
a. Keynes’ ideas help us understand movements in output around its long-run trend,
while the Classical model is more useful in explaining the long-run trend itself.
b. The classical model helps us understand movements in output around its long-run
trend, while the short-run macro model is more useful in explaining the long-run trend
itself.
c. Both classical and short-run macro models help us understand movements in output
around its long-run trend, but neither model is effective at explaining the long-run trend
itself.
d. Neither the classical nor the short-run macro model helps us understand movements
in output around its long-run trend, but both are useful in explaining the long-run trend
itself.
e. Only the short-run macro model is useful in understanding movements in output
around its long-run trend, and in explaining the long-run trend itself.
A decrease in demand and an increase in supply results in a(n)
a. decrease in equilibrium price and an ambiguous effect on equilibrium quantity
b. increase in equilibrium price and an ambiguous effect on equilibrium quantity
c. ambiguous effect on equilibrium price and an increase in equilibrium quantity
d. ambiguous effect on equilibrium price and an decrease in equilibrium quantity
e. increase in equilibrium price and a decrease in equilibrium quantity