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4 June, 23:35

In an imaginary economy, consumers buy only razors and cologne. The fixed basket consists of 6 razors and 4 bottles of cologne. A razor cost $20 in 2009 and $25 in 2010. A bottle of cologne cost $30 in 2009 and $40 in 2010. Using 2009 as the base yeara. What is the CPI for 2009? b. What is the CPI for 2010? c. What is the inflation rate for 2010?

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  1. 4 June, 23:38
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    The answers are:

    The CPI for 2009 is 100 (since it is the base year) The CPI for 2010 is 129.17 The inflation rate for 2010 is 29.17%

    Explanation:

    CPI basket for 2009

    6 razors x $20 per razor = $120 4 bottles of cologne x $30 per bottle = $120

    The total value of the CPI basket for 2009 is $240

    CPI basket for 2010

    6 razors x $25 per razor = $150 4 bottles of cologne x $40 per bottle = $160

    The total value of the CPI basket for 2010 is $310

    The CPI for 2009 is 100, since it is the base year The CPI for 2010 = (CPI basket 2010 / CPI basket 2009) x 100 = ($310 / $240) x 100 = 129.17 The inflation rate for 2010 = [ (CPI basket 2010 / CPI basket 2009) - 1] x 100 = (1.2917 - 1) x 100% = 29.17%
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