Chapter 17 If the value of the consumer price index is 110 in 2005 and 121 in 2006

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subject Pages 14
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subject Authors N. Gregory Mankiw

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Production and Growth 6171
11.
The traditional view of the production process is that capital is subject to
a.
constant returns.
b.
increasing returns.
c.
diminishing returns.
d.
diminishing returns for low levels of capital, and increasing returns for high levels of capital.
12.
If there are diminishing returns to capital, then
a.
capital produces fewer goods as it ages.
b.
old ideas are not as useful as new ones.
c.
increases in the capital stock eventually decrease output.
d.
increases in the capital stock increase output by ever smaller amounts.
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13.
All else equal, if there are diminishing returns, then which of the following is true if a country
increases its capital by
one unit?
a.
Output will rise by more than it did when the previous unit was added.
b.
Output will rise but by less than it did when the previous unit was added.
c.
Output will fall by more than it did when the previous unit was added.
d.
Output will fall but by less then it did when the previous unit was added.
14.
All else equal, if there are diminishing returns, then if a country raised its capital by 100 units last
year and by 100
units this year,
a.
the increase in output was greater for this year than last year.
b.
the increase in output was greater last year than this year.
c.
the increase in output is the same in both years.
d.
None of the above is necessarily correct.
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15.
Country A and country B are the same except country A currently has more capital. Assuming
diminishing returns,
if both countries increase their capital by 100 units and other factors that
determine output are unchanged, then
a.
output in country A increases by more than in country B.
b.
output in country A increases by the same amount as in country B.
c.
output in country A increases by less than in country B.
d.
None of the above is necessarily correct.
16.
Country A and country B both increase their capital stock by one unit. Output in country A
increases by 12 while
output in country B increases by 15. Other things the same, diminishing
returns implies that country A is
a.
richer than Country B. If Country A adds another unit of capital, output will increase by more
than 12 units.
b.
richer than Country B. If Country A adds another unit of capital, output will increase by less
than 12 units.
c.
poorer than Country B. If Country A adds another unit of capital, output will increase by more
than 12 units.
d.
poorer than Country B. If Country A adds another unit of capital, output will increase by less
than 12 units.
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17.
Country A and country B both increase their capital stock by one unit. Output in country A
increases by 10 while
output in country B increases by 8. Other things the same, diminishing
returns implies that country A is
a.
richer than Country B. If Country A adds another unit of capital, output will increase by more
than 10 units.
b.
richer than Country B. If Country A adds another unit of capital, output will increase by less
than 10 units.
c.
poorer than Country B. If Country A adds another unit of capital, output will increase by more
than 10 units.
d.
poorer than Country B. If Country A adds another unit of capital, output will increase by less
than 10 units.
18.
On a production function, as capital per worker increases, output per worker
a.
increases. This increase is larger at larger values of capital per worker.
b.
increases. This increase is smaller at larger values of capital per worker.
c.
decreases. This decrease is larger at larger value of capital per worker.
d.
decreases. This decrease is smaller at larger value of capital per worker.
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19.
According to the traditional view of the production function, which of the following values of the
additions to output
per worker would be consistent with moving from 5 to 6, and then from 6 to 7,
and then from 7 to 8 units of capital
per worker in that order?
a. 40, 40, 40
b. 40, 35, 38
c. 40, 34, 32
d. 40, 43, 48
20.
All else equal, if there are diminishing returns, then what happens to productivity if both capital
and labor increase?
a.
Productivity will definitely fall.
b.
Productivity will definitely be unchanged.
c.
Productivity will definitely rise.
d.
None of the above are necessarily correct.
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21.
All else equal, if there are diminishing returns and constant returns to scale, then what happens to
productivity if
capital and labor both increase but capital increases by more?
a.
Productivity will definitely fall.
b.
Productivity will definitely be unchanged.
c.
Productivity will definitely rise.
d.
None of the above are necessarily correct.
22.
The slope of the production function with capital per worker on the horizontal axis and output per
worker on the
vertical axis
a.
is positive and gets steeper as capital per worker rises.
b.
is positive and gets flatter as capital per worker rises.
c.
is negative and gets steeper as capital per worker rises.
d.
is negative and gets flatter as capital per worker rises.
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Production and Growth 6177
Figure 25-1.
On the horizontal axis, K/L represents capital (K) per worker (L). On the vertical axis, Y/L
represents
output (Y) per worker (L).
23.
Refer to Figure 25-1. The curve becomes flatter as the amount of capital per worker increases
because of
a.
increasing returns to capital.
b.
increasing returns to labor.
c.
diminishing returns to capital.
d.
diminishing returns to labor.
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24.
Refer to Figure 25-1. The shape of the curve is consistent with which of the following
statements about the
economy to which the curve applies?
a.
In the long run, a higher saving rate leads to a higher level of productivity.
b.
In the long run, a higher saving rate leads to a higher level of income.
c.
In the long run, a higher saving rate leads to neither a higher growth rate of productivity nor a
higher growth
rate of income.
d.
All of the above are correct.
25.
Refer to Figure 25-1. The shape of the curve is consistent with which of the following
statements about the
economy to which the curve applies?
a.
In the long run, a higher saving rate leads to a higher growth rate of productivity.
b.
In the long run, a higher saving rate leads to a higher growth rate of income.
c.
Returns to capital become increasingly smaller as the amount of capital per worker increases.
d.
All of the above are correct.
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26.
Refer to Figure 25-1. Choose a point anywhere on the curve and call it point A. If the economy
is at point A in
2011, then it will definitely remain at point A in 2012 if, between 2011 and 2012,
a.
the quantity of physical capital remains constant; the number of workers doubles; and human
capital, natural
resources, and technology all double as well.
b.
the quantity of physical capital doubles; human capital, natural resources, and technology all
double as well;
and the number of workers remains constant.
c.
the quantity of physical capital doubles; the number of workers doubles; and human capital,
natural
resources, and technology all double as well.
d.
the quantity of physical capital doubles; the number of workers doubles; and human capital,
natural
resources, and technology remain constant.
27.
Other things the same, a country that increases its saving rate increases
a.
its future productivity and future real GDP.
b.
neither its future productivity nor future real GDP.
c.
its future productivity, but not its future real GDP.
d.
its future real GDP, but not its future productivity.
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28.
If a country's saving rate increases, then in the long run
a.
productivity is higher but real GDP per person is not higher.
b.
real GDP per person is higher but productivity is not higher.
c.
productivity and real GDP per person are both higher.
d.
neither productivity nor real GDP per person is higher.
29.
Other things the same, a country that increases its savings rate will have
a.
higher future capital and higher future real GDP per person.
b.
higher future capital but not higher future real GDP per person.
c.
higher future real GDP per person but not higher future capital.
d.
neither higher future capital nor higher future real GDP per person.
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30.
Currently a country has real GDP per person of 500. Raising capital per worker by one would
increase output per
worker by 4. Other things the same, which of the following long-run
combinations are consistent with the effects of
this country increasing its saving rate?
a.
real GDP per person is 520 and raising capital per worker by one would increase output per
worker by 3
b.
real GDP per person is 520 and raising capital per worker by one would increase output per
worker by 5
c.
real GDP per person is 480 and raising capital per worker by one would increase output per
worker by 3
d.
real GDP per person is 480 and raising capital per worker by one would increase output per
worker by 5
31.
In the long run, a higher saving rate
a.
cannot increase the capital stock.
b.
means that people must consume less in the future.
c.
increases the level of productivity.
d.
None of the above is correct.
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32.
In the long run, an increase in the saving rate
a.
doesn’t change the level of productivity or income.
b.
raises the levels of both productivity and income.
c.
raises the level of productivity but not the level of income.
d.
raises the level of income but not the level of productivity.
33.
In the long run, a higher saving rate
a.
cannot increase the capital stock.
b.
increases the growth rate of income.
c.
increases the growth rate of productivity.
d.
None of the above is correct.
34.
Other things the same, if a country raises its saving rate, then in the long run
a.
both the level and growth rate of real GDP are unchanged.
b.
the level of real GDP is higher but the growth rate of real GDP is unchanged.
c.
both the level and growth rate of real GDP are higher.
d.
None of the above are correct.
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35.
Other things the same, if a country raises its saving rate, when is productivity growth higher?
a.
as the economy moves toward the long run and in the long run.
b.
as the economy moves toward the long run, but not in the long run.
c.
in the long run, but not as the economy moves toward the long run.
d.
neither as the economy moves toward the long run, nor in the long run.
36.
Other things the same, if a country raises its saving rate, when is growth of real GDP per person
higher?
a.
as the economy moves toward the long run and in the long run.
b.
as the economy moves toward the long run, but not in the long run.
c.
in the long run, but not as the economy moves toward the long run.
d.
neither as the economy moves toward the long run, nor in the long run.
37.
If a country were to increase its saving rate, then in the long run it would also increase its
a.
level of income.
b.
growth rate of income.
c.
growth rate of productivity.
d.
All of the above are correct.
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38.
If a country increases its saving rate, which of the following permanently grow at a higher rate?
a.
productivity and real GDP per person
b.
productivity but not real GDP per person
c.
real GDP per person but not productivity
d.
neither real GDP per person nor productivity
39.
Suppose that a country increased its saving rate. In the long run it would have
a.
higher productivity, and another unit of capital would increase output by more than before.
b.
higher productivity, but another unit of capital would increase output by less than before.
c.
lower productivity, and another unit of capital would increase output by more than before.
d.
lower productivity, but another unit of capital would increase output by less than before.
40.
If a countrys saving rate declined, then other things the same, in the long run the country would
have
a.
lower productivity, but not lower real GDP per person.
b.
lower productivity and lower real GDP per person.
c.
lower real GDP per person, but not lower productivity
d.
neither lower productivity nor lower real GDP per person.
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41.
Suppose Turkey increases its saving rate. In the long run
a.
the growth rates of productivity and real GDP per person increase.
b.
productivity and real GDP per person increase.
c.
the growth rate of productivity increases, and real GDP per person increases.
d.
productivity increases, and the growth rate of real GDP per person increases.
42.
Other things the same, if a country increased its saving rate, in 40 years or so it would likely have
a.
higher productivity, and a higher growth rate of real GDP.
b.
higher productivity, but not a higher growth rate of real GDP.
c.
the same productivity and growth of real GDP it began with.
d.
None of the above is correct.
43.
Which of the following best describes the response of output as time passes to an increase in the
saving rate?
a.
The growth rate of output does not change.
b.
The growth rate of output increases and gets even larger as time passes.
c.
The growth rate of output increases and does not change as time passes.
d.
The growth rate of output increases, but diminishes to its former level as time passes.
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44.
According to studies using international data, an increase in the saving rate
a.
does not increase the growth rate of output.
b.
increases the growth rate of output for a few years.
c.
increases the growth rate of output for about a decade.
d.
increases the growth rate of output for several decades.
45.
Suppose that the U.S. undertakes a policy to increase its saving rate. This policy will likely
a.
have no impact on the growth rate of real GDP per person.
b.
decrease the growth of real GDP per person for a few years.
c.
increase the growth of real GDP per person for several decades.
d.
permanently increase the growth rate of real GDP per person.
46.
Suppose that the U.S. undertakes a policy to increase its saving rate. This policy will likely
a.
have no impact on the level of real GDP per person.
b.
immediately and permanently decrease the level of real GDP per person.
c.
immediately and permanently increase the level of real GDP person.
d.
gradually raise the level of real GDP per person.
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47.
The short-run effects of an increase in the saving rate include
a.
a higher level of productivity.
b.
a higher growth rate of productivity.
c.
a higher growth rate of income.
d.
All of the above are correct.
48.
The long-run effects of an increase in the saving rate include
a.
a higher level of productivity.
b.
a higher growth rate of productivity.
c.
a higher growth rate of income.
d.
All of the above are correct.
49.
Suppose an economy experiences an increase in its saving rate. The higher saving rate leads to a
higher growth
rate of productivity
a.
in the short run, but not in the long run.
b.
in the long run, but not in the short run.
c.
in both the short run and the long run.
d.
in neither the short run nor the long run.
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50.
Suppose that there are diminishing returns to capital. Suppose also that two countries are the
same except one has
more capital per worker and so it has more real GDP per worker than the
other. Finally, suppose that the saving
rate in both countries increases from 4 percent to 7
percent. Over the next ten years we would expect that
a.
the growth rate will not change in either country.
b.
the country that started with less capital per worker will grow faster.
c.
the country that started with more capital per worker will grow faster.
d.
both countries will grow and at the same higher rate.
51.
Suppose that there are diminishing returns to capital. Suppose also that two countries are the
same except one has
less capital and so less real GDP per person. Suppose that both increase
their saving rate from 3 percent to 4
percent. In the long run
a.
both countries will have permanently higher growth rates of real GDP per person, and the
growth rate will be
higher in the country with more capital.
b.
both countries will have permanently higher growth rates of real GDP per person, and the
growth rate will be
higher in the country with less capital.
c.
both countries will have higher levels of real GDP per person, and the temporary increase in
growth in the
level of real GDP per person will have been greater in the country with more
capital.
d.
both countries will have higher levels of real GDP per person, and the temporary increase in
growth in the
level of real GDP per person will have been greater in the country with less
capital.
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52.
Other things equal, relatively poor countries tend to grow
a.
slower than relatively rich countries; this is called the poverty trap.
b.
slower than relatively rich countries; this is called the fall-behind effect.
c.
faster than relatively rich countries; this is called the catch-up effect.
d.
faster than relatively rich countries; this is called the constant-returns-to-scale effect.
53.
Two countries are the same, except one is poorer. Assuming the traditional assumption about the
production
function is made there are
a.
diminishing returns to capital so the poor country grows slower.
b.
increasing returns to capital so the poor country grows slower.
c.
diminishing returns to capital so the poor country grows faster.
d.
increasing returns to capital so the poor country grows faster.
54.
An increase in the saving rate would, other things the same,
a.
increase growth more for a poor country than for a rich country, and raise growth
permanently.
b.
increase growth more for a poor country than for a rich country, but raise growth temporarily.
c.
increase growth more for a rich country than for a poor country, and raise growth
permanently.
d.
increase growth more for a rich country than for a poor country, but raise growth temporarily.
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55.
Real GDP per person is $10,000 in Country A, $20,000 in Country B, and $30,000 in Country C.
The saving rate
increases by the same rate in all three countries. Other things equal, we would
expect that
a.
all three countries will grow at the same rate.
b.
Country A will grow the fastest.
c.
Country B will grow the fastest.
d.
Country C will grow the fastest.
56.
Assuming diminishing returns,
a.
the increase in output growth from an increase in the saving rate rises over time, and that, other
things the
same, rich countries should grow faster than poor ones.
b.
the increase in output growth from an increase in the saving rate falls over time, and that, other
things the
same, rich countries should grow faster than poor ones.
c.
the increase in output growth from an increase in the saving rate rises over time, and that, other
things the
same, poor countries should grow faster than rich ones.
d.
the increase in output growth from an increase in the saving rate falls over time, and that, other
things the
same, poor countries should grow faster than rich ones.

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