This is exactly the point of having states. They&#x27;re not called laboratories of democracy just because we like flowery language.<p>Obviously you can&#x27;t experiment on a statewide basis with federal taxes, but you can look at the economies of various states compared to their tax rates. Do states with low or no state income tax fare better than states with high state income tax? Do states with an additional capital gains tax have less investment or stock market participation per capita than states without an additional CG tax?