The zero-income-tax-rate states have far faster growth in tax revenues than did the states with highest income tax rate over this period.

There are lots of other things that affect state growth besides state taxes. However, the reason I look at taxes is because these are policy variables that can be changed by state governments in order to get better results than they otherwise had.

There are 11 states in the United States that in the last 50 years instituted an income tax. So I looked at each of those 11 states over the last 50 years, and I took their current economic metrics and their metrics for the five years before they put in the progressive income tax... Every single state that introduced a progressive income tax has declined as an overall share of the U.S. economy.

And you can't have a prosperous economy when the government is way overspending, raising tax rates, printing too much money, over regulating and restricting free trade. It just can't be done.

Let's take the nine states that have no income tax and compare them with the nine states with the highest income tax rates in the nation. If you look at the economic metrics over the last decade for both groups, the zero-income-tax-rate states outperform the highest-income-tax-rate states by a fairly sizable amount.

It has always amazed me how tax cuts don't work until they take effect. Mr. Obama's experience with deferred tax rate increases will be the reverse. The economy will collapse in 2011.

The income effects in an economy always sum to zero.