An economy's real output is growing at approximately 2% per year. According to the rule of 70, about how long will it take for real output to double?
Long-Run Economic Growth: Concepts, Calculations, and Policy Online Quiz Questions
Use this free practice quiz with 20 questions to review Long-Run Economic Growth: Concepts, Calculations, and Policy, test your knowledge, and prepare for your next test or exam.
True or false: A country can experience economic growth without achieving the same degree of economic development.
- A
True
- B
False
A factory produces 1,200 units using 500 labor hours. What is its labor productivity, measured in units per hour?
An economy adopts technology that raises productivity across many industries. This increase in productive capacity causes a of the LRAS curve.
According to the standard Solow growth model, what is the most accurate effect of a permanently higher saving rate?
- A
It permanently raises the growth rate of output per worker without limit
- B
It lowers the steady-state level of output per worker
- C
It raises the steady-state level of output per worker but does not by itself sustain permanent growth in output per worker
- D
It has no effect on output per worker because saving only affects consumption
Which changes can directly contribute to productivity growth? Select all correct choices.
- A
Improved production methods
- B
More efficient management
- C
A permanent increase in current consumption with no change in productive capacity
- D
Improved infrastructure and communication
True or false: A recession necessarily reduces an economy's long-run growth rate.
- A
True
- B
False
What is the full term for the measure of how efficiently an economy combines multiple inputs such as labor and capital to produce output?
The change in an economy's physical capital stock equals .
An economy has 3% output growth, 4% capital growth, 1% labor growth, and a capital share of 0.4. Using growth accounting, what is the approximate TFP contribution to output growth?
- A
0.2 percentage points
- B
0.6 percentage points
- C
1.2 percentage points
- D
0.8 percentage points
Which institutional features are generally likely to encourage productive investment and innovation? Select all correct choices.
- A
Secure property rights
- B
Enforceable contracts
- C
Protection from arbitrary expropriation being removed
- D
A reliable legal system
Explain why a higher saving rate can raise an economy's long-run level of output per worker without, by itself, creating permanent growth in output per worker. Contrast this result with the role of continuing technological progress.
Why can pollution generated during economic expansion justify policies such as emissions standards, pollution taxes, or tradable permits?
- A
It is a positive externality because pollution benefits nearby firms
- B
It is a negative externality because pollution imposes costs not fully reflected in market prices
- C
It is not an externality because all environmental costs are automatically included in prices
- D
It is a public good because every firm can sell pollution permits
Which statement best distinguishes long-run economic growth from economic development?
- A
Economic growth is only a short-run increase in aggregate demand.
- B
Economic development includes improvements beyond increased productive capacity.
- C
Economic growth and economic development are exactly identical concepts.
- D
Economic development refers only to increases in the capital stock.
Which change would most directly shift an economy’s long-run aggregate supply curve to the right?
- A
A fall in consumer confidence lowers potential output immediately.
- B
A temporary increase in government purchases shifts LRAS left.
- C
An increase in productivity shifts LRAS to the right.
- D
A recession always permanently lowers the economy’s growth rate.
According to the simplified production function y = A k^α, where 0 < α < 1, what is the most likely effect of increasing capital per worker while productivity is unchanged?
- A
Output per worker rises, but the additional gains from further capital deepening tend to diminish.
- B
Output per worker is unchanged because only total capital matters.
- C
Output per worker falls because capital substitutes completely for labor.
- D
Output per worker rises at an increasingly larger rate with every additional unit of capital.
A factory increases its output from 1,000 to 1,200 units while keeping labor time at 500 hours. Which conclusion about labor productivity is correct?
- A
It falls because software is a form of capital rather than labor.
- B
It is unchanged because the number of hours is unchanged.
- C
It rises by 10% because output rises by 200 units.
- D
It rises from 2 to 2.4 units per hour, a 20% increase.
True or false: In the standard Solow growth model, a permanently higher saving rate by itself can sustain a permanently higher growth rate of output per worker.
- A
True
- B
False
An economy’s real output grows at approximately 2% per year. Using the rule of 70, what is its approximate doubling time in years?
An economy has 3% output growth, 4% capital growth, 1% labor growth, and a capital share of 0.4. Assuming the labor share is 0.6, what is the residual TFP contribution in percentage points?