Connecticut doesn't have much of a tax base. Yale is one of the state's largest employers, and they're a not-for-profit that doesn't pay standard taxes. Greenwich and Westport are populated by many people who make their money in New York, and so the businesses they work at do not generate corporate tax contributions for Connecticut. They have Electric Boat and Sikorsky, but not too many other companies/corporations. General Electric just moved out - to Massachusetts of all places.
Electric Boat moving to Massachusetts? Maybe Admin stuff, because the acual boat yard is tied to the hip to Submarine base Groton. It would cost more than you want to think about to try to move that facility.
But they have said that if Sub Base Groton is ever closed, EB would move down close the Kings Bay GA FBM base.
Connecticut Feels Effect of Drop in Super-Rich Tax Payments
Classic story this week : a multi-billionaire from Fairfield Co. paying $30M in state income taxes, just moved to Florida. $30M. The drain has been going for decades.