ECON 2010 Lecture Notes - Lecture 14: Tax Incidence

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Lecture 14 Notes 2/22/17 Tax Incidence
Tax Incidence
- Taxes impose costs on both sides of a market
o Ee if uyers do’t had oey oer to the go., they still hae to pay a higher
prices because the supply curve shifts
- Tax incidence (burden of the tax) does not have to be equally placed on buyers and
sellers
- Tax incidence is measured by the change in effective price from pre-tax to post-tax
o Can also be expressed as the fraction of price changes faced by each side of the
market
What determines tax incidence?
- Relative elasticity of one curve compared to the other
- The less elastic curve faces greater tax incidence
- Less elastic means that quantity does not respond to price changes as much
- A small change in quantity corresponds to a larger price change
- If one side of the market is more sensitive to prices (relatively price elastic), more of the
tax will tend to be paid by the other side
Example
- In the short run, electricity generation can be easily changed
- Households tend to mostly ignore energy prices in the short run
- Electricity = inelastic (on the exam)
Relative Elasticity
- Elastiity is related to steepess, ut graphs a e isually isleadig he they do’t
have the same scale, so rely on numbers.
- Relatie elastiity deteries hih side pays more of the tax
Tax Policy
- Often times, the gov. needs to generate tax revenue and has to decide where to get it
from
- Does’t like iposig too uh ost o dead side of arket people ad households
- When might demand be more elastic than supply?
o If firms have a set production capacity and low marginal costs, they will produce
about the same amount regardless of market price
Additional Info
- Equilibrium quantity and effective price are the same no matter which side directly pays
the tax
- The less elastic side of the market faces a greater price change after a tax is imposed
o Tax incidence is greater for less elastic side of market
- Gov. must choose which markets to tax
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ECON 2010 Full Course Notes
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Document Summary

Taxes impose costs on both sides of a market: e(cid:448)e(cid:374) if (cid:271)uyers do(cid:374)"t ha(cid:374)d (cid:373)o(cid:374)ey o(cid:448)er to the go(cid:448). , they still ha(cid:448)e to pay a higher prices because the supply curve shifts. Tax incidence (burden of the tax) does not have to be equally placed on buyers and sellers. Tax incidence is measured by the change in effective price from pre-tax to post-tax: can also be expressed as the fraction of price changes faced by each side of the market. Relative elasticity of one curve compared to the other. The less elastic curve faces greater tax incidence. A small change in quantity corresponds to a larger price change. Less elastic means that quantity does not respond to price changes as much. If one side of the market is more sensitive to prices (relatively price elastic), more of the tax will tend to be paid by the other side. In the short run, electricity generation can be easily changed.

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