And one thing policymakers and journalists — and voters — should be sure of is that cutting tax rates can be a pretty effective way to boost economic growth. And raising tax rates hurts economic growth. I could point to numerous studies and historical examples. But here’s just one, a study from Christina Romer, President Obama’s former top economist: ”Tax increases appear to have a very large, sustained, and highly significant negative impact on output … [and] tax cuts have very large and persistent positive output effects.”
Now some folks, mostly found on the left, would like to believe this economic reality isn’t so. They would like to believe that America can pay for the coming deluge of entitlement spending by raising taxes on the rich with no impact on economic growth.
Example: this opinion piece from liberal New York Times columnist David Leonhardt, which suggests tax cuts don’t lead to higher economic growth. Basically, his whole argument is one of simple causality. There have been times when high taxes rates and high economic growth have peacefully coexisted. In fact, growth has been higher in the U.S. when taxes have been higher. Leonhardt seems to think this conclusion from a Congressional Research Service is an argument ender: