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Junior earns $80,000 taxable income as a regional circuit stock car driver and i

ID: 2513369 • Letter: J

Question

Junior earns $80,000 taxable income as a regional circuit stock car driver and is taxed at an average rate of 25 percent (i.e., $20,000 of tax). If Congress increases the income tax rate such that Junior's average tax rate increases from 25% to 30%, how much more income tax will he pay assuming that the income effect is larger than the substitution effect? What effect will this tax rate change have on the tax base and tax collected? What will happen to the government's tax revenues if Junior chooses to spend more time pursuing his other passions besides work (e.g. earns only $60,000 in taxable income) in response to the tax rate change? What is the term that describes this type of reaction to a tax rate increase? (Round your answers to two decimal places.)

Explanation / Answer

Answer:

Current taxable Income = $80,000

Tax @25% =$20,000

Income after Tax = $60,000

If income effect is higher than the substitution effect, Junior would maintain target level income after tax of $60,000.

After-tax income = Pre-tax income (1 - tax rate)

=> $60,000 = Pre-tax income (1 - 30%)

Pre-tax income = $60,000 / 70%= $85,714.29

As such Junior need to earn $85,714.29 to continue to have an after tax income= $60,000

Income tax he will pay= 30% * $85,714.29= $25,714.29

Increase in Income tax payment = $25,714.29 - $20,000 = $5,714.29

The effect of tax rate change on tax base and tax collected are as follows:

Tax base will increase to = $85,714.29

Tax collected will increase to = $25,714.29

If in response to tax rate change, Junior chooses to earn only $60,000:

Income tax he would pay = $60,000 * 30% = $18,000

Hence, government's tax revenue will decrease by = $20,000 - $18,000 = $2,000

The term that describes this type of reaction to a tax rate change is Substitution effect.