ECO 1102 Lecture 6: The Consumer Price Index

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The base year for any deflator is the year in which it assumes the value of 100. If the basket costs 100 dollars in the base year, then the price of the current basket of 128. 6 costs 28. 6$ more than it did in the base year. One of the functions of the consumer price index is to calculate the inflation rate. = (cid:1870)(cid:1855)(cid:1857) (cid:1867)(cid:1858) (cid:1854)(cid:1853)(cid:1871)(cid:1857)(cid:1872) (cid:1867)(cid:1858) (cid:1859)(cid:1867)(cid:1867)(cid:1856)(cid:1871) (cid:1853)(cid:1866)(cid:1856) (cid:1871)(cid:1857)(cid:1870)(cid:1874)(cid:1855)(cid:1857)(cid:1871) (cid:1866) (cid:1855)(cid:1873)(cid:1870)(cid:1870)(cid:1857)(cid:1866)(cid:1872) (cid:1857)(cid:1853)(cid:1870) (cid:1870)(cid:1855)(cid:1857) (cid:1867)(cid:1858) (cid:1854)(cid:1853)(cid:1871)(cid:1857)(cid:1872) (cid:1866) (cid:1854)(cid:1853)(cid:1871)(cid:1857) (cid:1857)(cid:1853)(cid:1870) The appropriate operation is exponentiation because price changes are compounded on each other. In compounding interest, the interest is added on after every compounding period. In the case of compound interest, interest is compounded on interest. In simple compounding, interest is applied only to the initial. Core inflation = cpi stripped of the prices of those goods and services with the most volatile prices, example: energy, gas ect.

Related Questions

The table below lists annual consumer price index and inflation rates for a country over the period 2005-2010. Assume the year 2005 is used as the base year.

Year	Consumer Price Index	Inflation Rate
2005	100
2006	115	B
2007	125	C
2008	140	D
2009	A	10%
2010	160	E

8.7%

120

25%

12%

The price index was 170 in the first year, 180 in the second year, and 195 in the third year. The inflation rate was about

5.9 percent between the first and second years, and 8.3 percent between the second and third years.

5.6 percent between the first and second years, and 7.7 percent between the second and third years.

10 percent between the first and second years, and 15 percent between the second and third years.

80 percent between the first and second years, and 95 percent between the second and third years.

0.1 points

QUESTION 17

The price index was 150 in the first year, 142.5 in the second year, and 138.2 in the third year. The economy experienced

		5.0 percent deflation between the first and second years, and 3.0 percent deflation between the second and third years.
		7.5 percent deflation between the first and second years, and 4.3 percent deflation between the second and third years.
		5.3 percent inflation between the first and second years, and 4.1 percent inflation between the second and third years.
		7.5 percent inflation between the first and second years, and 4.3 percent inflation between the second and third years

0.1 points

QUESTION 18

Which of the following statements is correct about the relationship between the nominal interest rate and the real interest rate?

The real interest rate is the nominal interest rate minus the rate of inflation.

The real interest rate is the nominal interest rate times the rate of inflation.

The real interest rate is the nominal interest rate plus the rate of inflation.

The real interest rate is the nominal interest rate divided by the rate of inflation.

0.1 points

QUESTION 19

If the nominal interest rate is 6 percent and the rate of inflation is 2 percent, then the real interest rate is

4 percent.

-4 percent.

3 percent.

8 percent.

0.1 points

QUESTION 20

If the nominal interest rate is 7 percent and the real interest rate is -2.5 percent, then the inflation rate is

9.5 percent.

4.5 percent.

-4.5 percent.

-9.5 percent.

. From 2009 to 2010, the CPI for education increased from 279.3 to 281.8. What was the inflation rate for education between 2009 and 2010?

0.9%

9.0%

2.5%

90%

If the consumer price index changes from 125 in September to 150 in October, what is the rate of inflation?

20.0%

45.5%

16.7%

9.1%

. Suppose a basket of goods and services has been selected to calculate the CPI and 2014 has been selected as the base year. In 2013, the basketâs cost was $80; in 2014, the basketâs cost was $86; and in 2015, the basketâs cost was $90. The value of the CPI in 2015 was

104.6 and the inflation rate was 4.6%.

112.5 and the inflation rate was 4.6%.

112.5 and the inflation rate was 12.5%.

104.6 and the inflation rate was 12.5%.

Suppose a basket of goods and services has been selected to calculate the CPI. In 2002, the basketâs cost was $80; in 2008, the basketâs cost was $92; and in 2010, the basketâs cost was $108. The base year must be

The base year cannot be determined from the given information.

2002

2008

one of the years between 2008 and 2010.

Suppose a basket of goods and services has been selected to calculate the CPI and 2012 has been chosen as the base year. In 2012, the basketâs cost was $80.00; in 2013, the basketâs cost was $84; and in 2014, the basketâs cost was $87.60. The value of the CPI was

All of the above are correct.

109.5 in 2014.

105 in 2013.

100 in 2012.

Which of the following is correct?

The CPI is better than the GDP deflator at reflecting the goods and services bought by consumers.

The GDP deflator is better than the CPI at reflecting the goods and services bought by consumers.

The GDP deflator and the CPI are equally good at reflecting the goods and services bought by consumers.

The GDP deflator is more commonly used as a gauge of inflation than the CPI is.

The inflation rate is defined as the

percentage change in the price level from the previous period.

price level in an economy.

change in the price level from one period to the next.

price level minus the price level from the previous period.

Economists use the term inflation to describe a situation in which

the economy's overall price level is rising.

some prices are rising faster than others.

the economy's overall price level is high, but not necessarily rising.

the economy's overall output of goods and services is rising faster than the economy's overall price level.

Suppose that the are two goods in the economy, Xylophones (X) and Yams (Y). In year t, consumers in the economy purchase 20 Xylophones at a price of $20 each and 100 Yams at a price of $2 each. In year t + 1, consumers in the economy purchase 18 Xylophones at a price of $30 each and 150 Yams at a price of $2.50 each.

1. Calculate the GDP deflator in years t and t + 1 with base year t. What is inflation according to this deflator? Show each step. (Hint: it will be helpful for you to first calculate nominal and real GDP in years t and t + 1. When you calculate real GDP, make sure that you use the appropriate base year).

2. Calculate the GDP deflator in years t and t + 1 with base year t + 1. What is inflation according to this deflator? Show each step. (Hint: you will need to calculate real GDP in years t and t + 1 using a different base year than you used in part 1. Once you calculate real GDP with the appropriate base year, you will follow the same steps that you did in part 1.)

3. Compare your answers to a and b above. Are they the same? If not, why not? How does chain-weighting address any potential difference?

4. Calculate the CPI in years t and t + 1, using year t as the base year.

5. Describe two ways in which the CPI differs from the GDP deflator.

6. There are several problems with using the CPI to calculate real GDP and measure growth. One of these problems is that the CPI does not account for changes in the quality of goods sold over time. A computer today is significantly more efficient than it was even just ten years ago, so even if the price of computers rise with inflation, you are getting significantly more computing power per dollar. How would this bias estimates of GDP growth and inflation?

8. Which of the following items is included in the calculation of GDP?

a.Purchase of a used car.

b.Purchase of 100 shares of General Motors stock.

c.Purchase of an intermediate good.

d.None of the above would be included

9. Difference between Real and Nominal GDP is:

a.Change in price level from base year to current year

b.Measured by excluding some of the sectors

c.That real GDP is always smaller than Nominal GDP

d.None of the above

10. GDP in an economy is $11,050 billion. Consumer expenditures are $7,735 billion, government purchases are $1,989 billion, and gross investment is $1,410 billion. Net exports are:

a.+$53 billion

b.-$84 billion

c.-$47 billion

d.-$161 billion

11. Equality (As a tool of measurement for quality of life) refers to a balance of Economic and Political Power between which two groups?

a.Homeless and Employed

b.Men and Women

c. Different ethnic groups

d. Rich and Poor

12.What is inflation?

a.A fall in the general level of prices occurs, workers need more money to pay for goods, clothing, and shelter

b.A rise in the general level of prices occurs, workers need more money to pay for goods, clothing, and shelter

c.A rise in the general level of prices occurs, workers need less money to pay for goods, clothing and shelter

d.A fall in the general level of prices occurs, workers need less money to pay for goods, clothing and shelter

13.Which of the following is the best measure of how inflation affects consumers?

A.The increase in the price of gold

B. The increase in the consumer price index

C. The increase in the price of a single product

D. The decrease in the consumer price index

14. The Consumer Price Index (CPI)

a. Measures the rate of output in the economy over one year.

b.Measures the increase in wholesale prices since a base year.

c.Is deficient because it does not include medical prices.

d.Is used to calculate the rate of inflation over a given period.

15.How is the unemployment rate computed?

a. Number of unemployed persons divided by the number of economically active (i.e. employed and unemployed) persons aged fifteen years and over.

b.Number of unemployed persons divided by the number of people aged fifteen years and over.

c.Number of unemployed persons divided by the number of employed persons aged fifteen years and over.

d.None of the above

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ECO 1102 Lecture 6: The Consumer Price Index

ECO 1102 Full Course Notes

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