Q: Suppose the nominal exchange rate between the US dollar and the euro is 1.2 ($$1 = €1.2$$), the US price level is 120, and the European price level is 100. What is the real exchange rate?

Real exchange rate = $$ 1.2 \times \frac{120}{100} = 1.44 $$

Question 1

Suppose a country's real GDP grows at an annual rate of 5%. Using the Rule of 70, how many years will it take for the real GDP to double?

Accepted Answer

14 years

Question 2

Which of the following best describes the difference between human capital and technology as determinants of productivity?

Accepted Answer

Human capital refers to the skills and knowledge of workers, while technology refers to the processes used to turn inputs into outputs.

Question 3

A government implements a policy that lowers taxes on interest income. According to the loanable funds model, what is the most likely effect?

Accepted Answer

The supply of loanable funds increases, shifting the supply curve to the right, lowering real interest rates and increasing investment.

Question 4

If a country has a budget surplus, what happens to the supply of loanable funds in the loanable funds market?

Accepted Answer

The supply of loanable funds increases, shifting the supply curve to the right.

Question 5

According to the Solow Growth Model, what happens to output as capital per worker increases, assuming diminishing returns to capital?

Accepted Answer

Output increases, but each additional unit of capital yields progressively smaller increases in output.

Question 6

Which of the following is NOT a function of money?

Accepted Answer

Money acts as a source of government revenue.

Question 7

A bank has $100,000 in deposits and a required reserve ratio of 10%. What is the maximum amount of money that can be created in the banking system using the money multiplier?

Accepted Answer

The money multiplier is $$ \frac{1}{0.10} = 10 $$; thus, maximum money creation is $$ 100,000 	imes 10 = 1,000,000 .$$

Question 8

Which of the following best describes monetary neutrality?

Accepted Answer

Changes in the money supply affect only nominal variables, not real variables.

Question 9

If the Federal Reserve increases the money supply, what is the most likely short-run effect on aggregate demand?

Accepted Answer

Aggregate demand increases due to lower interest rates, which stimulate consumption and investment.

Question 10

Suppose the nominal exchange rate between the US dollar and the euro is 1.2 ($$1 = €1.2$$), the US price level is 120, and the European price level is 100. What is the real exchange rate?

Accepted Answer

Real exchange rate = $$ 1.2 	imes \frac{120}{100} = 1.44 $$

Question 11

Which of the following would most likely cause a country's currency to depreciate?

Accepted Answer

A decrease in net capital inflows, making domestic assets less attractive to foreign investors.

Question 12

Which statement best describes the short-run Phillips curve?

Accepted Answer

It shows an inverse relationship between inflation and unemployment.

Question 13

If a country is experiencing hyperinflation, which of the following is most likely true?

Accepted Answer

The money supply is growing rapidly, causing prices to rise at an accelerating rate.

Question 14

Which of the following is a plausible effect of an expansionary monetary policy during a recession, as seen in the 2008 financial crisis?

Accepted Answer

Lower interest rates stimulate borrowing and investment, helping to increase aggregate demand.

Question 15

In an open economy, which identity must always hold?

Accepted Answer

$$ S = I + NCO  ($$where $$S is $$savings, $$I is $$investment, and $$NCO is $$net capital outflow)

Question 16

A country with positive net exports and positive net capital outflow is most likely experiencing which of the following?

Accepted Answer

It is exporting more goods and investing more abroad than it is importing and receiving foreign investment.

Question 17

Which of the following is a key insight of Paul Romer's New Growth Model?

Accepted Answer

Technological change is influenced by economic incentives and determined by the market system.

Question 18

If the reserve ratio in a fractional reserve banking system is increased, what happens to the money multiplier?

Accepted Answer

The money multiplier decreases, since $$ 	ext{Money Multiplier} = \frac{1}{	ext{Reserve Ratio}} .$$

Question 19

Which of the following is an example of a real variable according to the classical dichotomy?

Accepted Answer

Real GDP

Macroeconomics Study Notes: Economic Growth, Financial Systems, Money, Monetary Policy, and Open Economy

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