18) In a mixed closed economy:
A.government purchases and saving are injections, while investment and taxes are
leakages.
B.taxes and government purchases are leakages, while investment and saving are
injections.
C.taxes and savings are leakages, while investment and government purchases are
injections.
D.taxes and investment are injections, while saving and government purchases are
leakages.
19) which of the following statements is correct?
a.supply is more elastic in the short run than in the long run.
b.demand is more elastic in the short run than in the long run.
c.demand is more elastic when a large number of substitute goods are available.
d.supply is more elastic when there are a small number of producers in the industry.
20)
Refer to the above diagram. Rational expectations theory says that a fully anticipated
decrease in aggregate demand from AD2 to AD1 will:
A.move the economy from a to b to c.
B.shift the AS curve to the left.
C.move the economy from c to new equilibrium b.
D.move the economy directly from c to a.