You are Lori Lightfoot. The city needs money.  You are contemplating 2 sources of revenue:  levying a tax on gas in Chicago at $.50/ gal, and/or increasing the CTA fare $.25.  The 2 demand schedules are as follows. Gas price                 Gallons demanded (in millions)                            CTA fare      Number of riders                                                                                                                           (one way)    (in millions) $4.50                           1                                                                                  $2.00            6  4.00                             1.1                                                                                1.75             8  3.50                              1.2                                                                               1.50             10  3.00                            1.3                                                                                                What are the elasticites for gas tax and increase in CTA fares using the mid point method?

Essentials of Economics (MindTap Course List)
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Author:N. Gregory Mankiw
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Chapter6: Supply, Demand And Government Policies
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You are Lori Lightfoot. The city needs money.  You are contemplating 2 sources of revenue:  levying a tax on gas in Chicago at $.50/ gal, and/or increasing the CTA fare $.25.  The 2 demand schedules are as follows.

Gas price                 Gallons demanded (in millions)                            CTA fare      Number of riders 

                                                                                                                         (one way)    (in millions)

$4.50                           1                                                                                  $2.00            6

 4.00                             1.1                                                                                1.75             8

 3.50                              1.2                                                                               1.50             10

 3.00                            1.3                                                                                             

 

What are the elasticites for gas tax and increase in CTA fares using the mid point method? 

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