Q: Suppose the cost of the CPI basket in the base period is $$100, and in the current period it is 130. $$What is the CPI for the current period?

$$ \text{CPI} = \left( \frac{130}{100} \right) \times 100 = 130 $$

Q: If the CPI was 120 last year and 132 this year, what is the inflation rate for this year?

$$ \text{Inflation Rate} = \frac{132 - 120}{120} \times 100 = 10\% $$

Q: Suppose in a simple economy, the cost of the CPI basket in the base period is $$50, and in the current period it is 70. $$What is the percentage increase in the CPI?

$$ \frac{70 - 50}{50} \times 100 = 40\% $$

Q: If the CPI in 2020 is 250 and in 2021 is 275, what is the inflation rate from 2020 to 2021?

$$ \frac{275 - 250}{250} \times 100 = 10\% $$

Question 1

Which of the following best defines the price level in macroeconomics?

Accepted Answer

The average of all prices paid by consumers for a fixed basket of goods and services.

Question 2

A persistently rising price level is called:

Accepted Answer

Inflation

Question 3

Why is unpredictable inflation considered a problem for the economy?

Accepted Answer

It redistributes income and wealth arbitrarily and diverts resources from productive activities.

Question 4

Which of the following is NOT a consequence of high and unpredictable inflation?

Accepted Answer

Increase in the value of money over time.

Question 5

The Consumer Price Index (CPI) is primarily used to:

Accepted Answer

Measure the average price level paid by urban consumers for a fixed basket of goods and services.

Question 6

Suppose the cost of the CPI basket in the base period is $$100, and in the current period it is 130. $$What is the CPI for the current period?

Accepted Answer

$$ 	ext{CPI} = \left( \frac{130}{100} ight) 	imes 100 = 130 $$

Question 7

If the CPI was 120 last year and 132 this year, what is the inflation rate for this year?

Accepted Answer

$$ 	ext{Inflation Rate} = \frac{132 - 120}{120} 	imes 100 = 10\% $$

Question 8

Which of the following best describes hyperinflation?

Accepted Answer

A situation where the inflation rate is so high that workers are paid twice a day because money loses value rapidly.

Question 9

The CPI basket is updated periodically based on data from which survey?

Accepted Answer

Consumer Expenditure Survey

Question 10

Which component typically has the largest weight in the CPI basket?

Accepted Answer

Housing

Question 11

What are the three main steps in constructing the CPI?

Accepted Answer

Selecting the CPI basket, conducting a monthly price survey, calculating the CPI

Question 12

Suppose in a simple economy, the cost of the CPI basket in the base period is $$50, and in the current period it is 70. $$What is the percentage increase in the CPI?

Accepted Answer

$$ \frac{70 - 50}{50} 	imes 100 = 40\% $$

Question 13

If the CPI in 2020 is 250 and in 2021 is 275, what is the inflation rate from 2020 to 2021?

Accepted Answer

$$ \frac{275 - 250}{250} 	imes 100 = 10\% $$

Question 14

Which of the following is a direct cost of inflation to society?

Accepted Answer

Resources diverted from productive activities to inflation forecasting

Question 15

In the CPI calculation, why is a fixed basket of goods used?

Accepted Answer

To measure changes in the cost of living by holding quantities constant and observing price changes.

Question 16

Suppose the CPI in the base year is always:

Accepted Answer

$$ 100 $$

Question 17

If the cost of the CPI basket in the base period is $$200 and in the current period is 260$$, what is the CPI for the current period?

Accepted Answer

$$ \left( \frac{260}{200} ight) 	imes 100 = 130 $$

Question 18

Which of the following statements about deflation is correct?

Accepted Answer

Deflation is a persistently falling price level.

Question 19

Which of the following best describes the formula for the inflation rate using the CPI?

Accepted Answer

$$ 	ext{Inflation rate} = \frac{	ext{CPI}_{	ext{this year}} - 	ext{CPI}_{	ext{last year}}}{	ext{CPI}_{	ext{last year}}} 	imes 100 $$

Price Level, Inflation, and Deflation: Key Concepts and Measurement

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