Q: Suppose the working-age population of a country is 200 million, the labor force is 120 million, and there are 10 million unemployed workers. What is the unemployment rate?

$$\frac{10}{120} \times 100 = 8.33\%$$

Q: If the Consumer Price Index (CPI) was 100 in the base year and is 306 in 2023, by what percentage have prices increased since the base year?

$$\frac{306 - 100}{100} \times 100 = 206\%$$

Q: Suppose the cost of a CPI basket in the base year is $$50, and in the current year it is 70. $$What is the CPI for the current year?

$$\frac{70}{50} \times 100 = 140$$

Question 1

Suppose the working-age population of a country is 200 million, the labor force is 120 million, and there are 10 million unemployed workers. What is the unemployment rate?

Accepted Answer

$$\frac{10}{120} 	imes 100 = 8.33\%$$

Question 2

Which of the following best describes structural unemployment?

Accepted Answer

Unemployment caused by changes in technology or foreign competition that make certain skills obsolete.

Question 3

If the Consumer Price Index (CPI) was 100 in the base year and is 306 in 2023, by what percentage have prices increased since the base year?

Accepted Answer

$$\frac{306 - 100}{100} 	imes 100 = 206\%$$

Question 4

Which of the following is NOT a reason why inflation is considered harmful to an economy?

Accepted Answer

It increases the real value of money held by the public.

Question 5

A country experiences a period where prices are falling, and consumers delay purchases in anticipation of lower prices. What is this phenomenon called, and why is it problematic?

Accepted Answer

Deflation; it can lead to a vicious cycle of reduced spending and economic contraction.

Question 6

If the nominal interest rate on a savings account is 4% and the inflation rate is 2%, what is the real interest rate?

Accepted Answer

$$4\% - 2\% = 2\%$$

Question 7

Which of the following best describes the natural rate of unemployment?

Accepted Answer

The sum of frictional and structural unemployment present even when the economy is at full employment.

Question 8

Suppose the cost of a CPI basket in the base year is $$50, and in the current year it is 70. $$What is the CPI for the current year?

Accepted Answer

$$\frac{70}{50} 	imes 100 = 140$$

Question 9

Which of the following is a limitation of the Consumer Price Index (CPI) as a measure of inflation?

Accepted Answer

It does not account for substitution towards cheaper goods when prices change.

Question 10

During a recession, which type of unemployment typically increases the most?

Accepted Answer

Cyclical unemployment

Question 11

If the labor force participation rate is calculated as $$\frac{	ext{Labor Force}}{	ext{Working Age Population}} 	imes 100$$, what happens to this rate if discouraged workers re-enter the labor force during a recovery?

Accepted Answer

It increases because the labor force increases while the working-age population remains the same.

Question 12

Which of the following scenarios best illustrates frictional unemployment?

Accepted Answer

A recent college graduate is searching for their first job.

Question 13

Which of the following statements about the Phillips Curve is most accurate based on recent economic history?

Accepted Answer

The inverse relationship between unemployment and inflation was clear in the 1950s-1970s, but has become less predictable in recent decades.

Question 14

If the output gap is defined as the difference between actual and potential GDP, what does a negative output gap indicate?

Accepted Answer

Actual GDP is below potential GDP, indicating underutilized resources.

Question 15

Which of the following is a likely consequence of hyperinflation?

Accepted Answer

Money loses its value rapidly, leading to a breakdown in normal commerce.

Question 16

A government indexes social security payments to the CPI. If the CPI overstates inflation, what is the likely result?

Accepted Answer

Social security payments will rise faster than needed to maintain purchasing power.

Question 17

Which of the following best describes the concept of 'creative destruction' in the context of unemployment?

Accepted Answer

The process by which old jobs are destroyed and new ones are created, leading to some unavoidable unemployment.

Question 18

If the CPI basket is kept fixed over time, which type of bias is most likely to occur in the measurement of inflation?

Accepted Answer

Substitution bias

Question 19

Which of the following would NOT be included in the official U3 unemployment rate?

Accepted Answer

A discouraged worker who has stopped looking for a job.

Question 20

Suppose the nominal interest rate is 8% and the inflation rate is 10%. What is the real interest rate, and what does this imply for savers?

Accepted Answer

$$8\% - 10\% = -2\%$$; savers are losing purchasing power.

Unemployment, Inflation, and the Phillips Curve: Key Macroeconomic Concepts

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