Comparing the McCain and Obama Tax Plans

…or another reason why math trumps politics:

Let me try to put each tax plan into a single number. Let’s suppose Greg Mankiw takes on an incremental job today and earns a dollar. How much, as a result, will he leave his kids in T years?

The answer depends on four tax rates. First, I pay the combined income and payroll tax on the dollar earned. Second, I pay the corporate tax rate while the money is invested in a firm. Third, I pay the dividend and capital gains rate as I receive that return. And fourth, I pay the estate tax when I leave what has accumulated to my kids.

Let t1 be the combined income and payroll tax rate, t2 be the corporate tax rate, t3 be the dividend and capital gains tax rate, and t4 be the estate tax rate. And let r be the before-tax rate of return on corporate capital. Then one dollar I earn today will yield my kids:


For my illustrative calculations, let me take r to be 10 percent and my remaining life expectancy T to be 35 years.

If there were no taxes, so t1=t2=t3=t4=0, then $1 earned today would yield my kids $28. That is simply the miracle of compounding.

Under the McCain plan, t1=.35, t2=.25, t3=.15, and t4=.15. In this case, a dollar earned today yields my kids $4.81. That is, even under the low-tax McCain plan, my incentive to work is cut by 83 percent compared to the situation without taxes.

Under the Obama plan, t1=.43, t2=.35, t3=.2, and t4=.45. In this case, a dollar earned today yields my kids $1.85. That is, Obama’s proposed tax hikes reduce my incentive to work by 62 percent compared to the McCain plan and by 93 percent compared to the no-tax scenario. In a sense, putting the various pieces of the tax system together, I would be facing a marginal tax rate of 93 percent.

Short version: McCain’s plan is good for families, Obama’s plan is good for justĀ right now.

In the end, your hard work earns more with McCain.

This entry was posted in Uncategorized. Bookmark the permalink.

One Response to Comparing the McCain and Obama Tax Plans

  1. wowgolds987 says:

    Now, you can buywow gold from We guarantee a minimum sale priceWorld of warcraft Gold to you, please contact us. We know that the players need, we provide you with
    wow power leveling , allows you to the role of Warcraft has become the hero in it!

Leave a Reply

Your email address will not be published. Required fields are marked *