http://conceptualmath.org/philo/taxgrowth.htm
Warning - Math, graphs and charts. IOW facts.
Warning - Math, graphs and charts. IOW facts.
In the last 50 years there were 5 tax cuts to the rich. Three of them were followed by a decline in GDP growth, 3 were followed by a decline in employment growth. The evidence suggests that tax cuts do not promote growth and probably promote decline.
In the last 50 years there was just one tax increase to the rich. After that tax increase both the GDP and employment growth rates increased significantly.
The historical evidence suggests that an economic decline will follow a tax cut to the rich, and economic growth may follow a tax increase to the rich. The evidence suggests that the optimum tax marginal tax rate on the rich is higher than 60%.