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.
Arthur LafferYou know, without China there is no Wal-Mart and without Wal-Mart there is no middle class and lower class prosperity in the United States.
Arthur LafferAnd 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.
Arthur LafferLet'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.
Arthur Laffer