Q: Suppose the money supply ($$M) is$$ $$2000$$, the price level ($$P) is$$ $$5$$, and real GDP ($$Y) is$$ $$800. $$What is the velocity of money ($$V$$)?

$$V = \frac{5 \times 800}{2000} = 2$$

Question 1

According to the quantity theory of money, what is the primary cause of long-run inflation?

Accepted Answer

Excessive growth in the money supply

Question 2

If the price level $$P$$ increases from $$2 to$$ $$4$$, what happens to the value of money $$1/P$$?

Accepted Answer

It decreases from $$1/2 to$$ $$1/4$$

Question 3

Which equation represents the velocity of money?

Accepted Answer

$$V = \frac{P 	imes Y}{M}$$

Question 4

Suppose the money supply ($$M) is$$ $$2000$$, the price level ($$P) is$$ $$5$$, and real GDP ($$Y) is$$ $$800. $$What is the velocity of money ($$V$$)?

Accepted Answer

$$V = \frac{5 	imes 800}{2000} = 2$$

Question 5

If the Federal Reserve increases the money supply by 5% and velocity is constant, what happens to the price level in the long run, assuming real GDP is unchanged?

Accepted Answer

The price level increases by 5%

Question 6

Which of the following best describes the inflation tax?

Accepted Answer

The reduction in the value of money held by the public due to rising prices from money printing

Question 7

In the Fisher effect, if the inflation rate rises by 3 percentage points, what happens to the nominal interest rate, assuming the real interest rate is unchanged?

Accepted Answer

It increases by 3 percentage points

Question 8

Which of the following is NOT a cost of inflation described in the study materials?

Accepted Answer

Increased real wages

Question 9

If unexpected inflation occurs, who benefits and who loses?

Accepted Answer

Debtors benefit, creditors lose

Question 10

Suppose you deposit $$1000 in a $$bank for one year at a nominal interest rate of $$10	ext{%}$$ and the inflation rate is $$0	ext{%}. If $$the tax rate is $$25	ext{%}$$, what is your after-tax real interest rate?

Accepted Answer

$$7.5	ext{%}$$

Question 11

If the nominal interest rate is $$20	ext{%}$$, the inflation rate is $$10	ext{%}$$, and the tax rate is $$25	ext{%}$$, what is the after-tax real interest rate?

Accepted Answer

$$5	ext{%}$$

Question 12

Which of the following statements about hyperinflation is correct?

Accepted Answer

Hyperinflation is always caused by excessive growth in the money supply

Question 13

If the money supply ($$M) $$increases by $$5	ext{%}$$ and real GDP ($$Y) $$increases by $$3	ext{%}$$, with velocity ($$V) $$constant, what is the approximate inflation rate?

Accepted Answer

$$2	ext{%}$$

Question 14

Which of the following best explains 'menu costs'?

Accepted Answer

The cost to firms of changing prices due to inflation

Question 15

According to the quantity theory of money, if $$V is $$stable and $$Y is $$determined by technology and resources, what happens if $$M$$ doubles?

Accepted Answer

$$P$$ doubles

Question 16

Which of the following is a common misconception about inflation?

Accepted Answer

Inflation erodes real incomes in the long run

Question 17

If the government prints money to pay for its spending, what is the likely result according to the study materials?

Accepted Answer

An increase in prices, acting as an inflation tax

Question 18

Which formula represents the quantity equation?

Accepted Answer

$$M 	imes V = P 	imes Y$$

Question 19

What is the main reason inflation reduces the incentive to save/invest, according to the study materials?

Accepted Answer

Taxes are based on nominal income, which grows faster than real income during inflation

Question 20

If the price level ($$P) is$$ $$10$$, real GDP ($$Y) is$$ $$3,000$$, and the money supply ($$M) is$$ $$10,000$$, what is the nominal GDP and velocity of money?

Accepted Answer

Nominal GDP = $$30,000$$, Velocity = $$3$$

Money and Inflation: The Quantity Theory and Its Implications

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