Calculate the inflation rate between 2012 and 2013 using the CPI approach.

Inflation data

Year Price of

Books $

Quantity of Books Price of Pencils $ Quantity of Pencils Price of Pens $ Quantity of Pens
2011 $50 10 1.00 100 $5 100
2012 $50 12 1.00 200 $10 50
2013 $60 12 1.50 250 $20 20

The Inflation data above shows the prices and the quantities consumed in a college bookstore. Using 2011 as the base year

Question 2B.

Calculate the inflation rate between 2012 and 2013 using the CPI approach.

Calculate inflation using the GDP deflator index; explain why consumer price index (CPI) overstates inflation when compared to inflation rate determined by using GDP deflator.

 
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