Question

Assume that the CPI base year is 1990 and also assume that the CPI market basket...

Assume that the CPI base year is 1990 and also assume that the CPI market basket has .04 houses, .1 cars, and 1,500 gallons of gasoline. Please use 1 decimal place in your answers.

Year House Price Car Price Nominal Gasoline Price per Gallon

1990

$150,000 $10,000

$2.00

2000 $210,000 $18,000 $2.10
2010 $225,000 $25,000 $2.30
2019 $250,000 $30,000 $2.50
2020 $252,000 $30,500 $2.70

What is the value of the CPI in 1990 and in 2020? What is the value of the core CPI in 2020?

Homework Answers

Answer #1

CPI = cost of market basket in given year / cost of market basket in base year ) * 100

CPI in 1990 = 100

CPI in 2020 = Cost of market basket in 2020 / cost of market basket in 1990 ) * 100

cost of market basket in 2020 = [(.04*252000) + (.1*30500) + ( 1500 *2.7) ] = 100800 +3050 +4050 = 1,07,900

cost of market basket in 1990 =[ ( 0.4 *150000 ) + ( .1*10000) + ( 1500+2) ] = 60000 + 1000 + 3000 = 64000

CPI in 2020 = { 107900 / 64000) * 100 = 168.59

in core inflation we exclude those commodities price which are high volatile like foods and energy , etc.

thereforewe exclude gasoline price .

Core CPI in 2020 = 103850 / 61000 ) *100 = 170.24

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