47) If all income is consumed in a year, then
A) investment spending will increase.
B) income next year will increase.
C) investment spending will be zero.
D) any investment spending will be done by the government.
48) Many countries find it difficult to achieve economic growth. This is because economic
growth
A) is not understood well by economists, so it is difficult to advise policy makers on the best
policies to pursue.
B) requires saving, and saving means less consumption today. A poor country may find it
difficult to consume less today.
C) appears to be predetermined and not subject to factors that policy makers can have any affect
on.
D) depends on technological change and technological change depends on noneconomic factors
such as the growth rate of scientific knowledge.
49) It is likely that a small increase in a country’s saving rate will have
A) a large effect on per capita real GDP many years later because the increase in saving leads to
a slightly higher rate of economic growth which has large effects over time.
B) a large effect on per capita real GDP immediately because the increase in saving leads to a
much larger rate of economic growth.
C) a small effect on per capita real GDP many years later because the increase in saving will
have very little effect on the growth rate.
D) a small effect on per capita real GDP many years later because the increase in saving will be
offset in later years by a decrease in the saving rate.