Calculate a Laspeyres​ cost-of-living index

Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter18: Introduction To Macroeconomics: Unemployment, Inflation, And Economic Fluctuations
Section: Chapter Questions
Problem 18P
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Megan
is a college student who consumes food and transportation. Last​ year, she consumed 90 meals and purchased 100 gallons of gasoline per month. Suppose that last year the price of a meal was
​$5
and the price of a gallon of gasoline was
​$2.23.
​However, this​ year, the price of a meal is
​$6
and the price of a gallon of gasoline is
​$3.92.
As a​ result,
Megan
consumes 100 meals and 80 gallons of gasoline. For this​ example, assume
Megan​'s
utility this year is the same as her utility last year​ (and that her preferences have not​ changed).
Calculate a Laspeyres​ cost-of-living index for
Megan
using 100 as the base for last year. In​ particular, the Laspeyres index for this year is
nothing.
​(Enter
your response rounded to two decimal
places.​)
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