This early research on sports wagering shows that, in every respect, the positive impacts to the Commonwealth generated by this new industry are dwarfed by the positive impacts generated by other forms of gambling in the state. Casino gambling remains by far the larger driver of economic activity in Massachusetts. While the amount of money wagered, won, and lost in sports betting is significant, the legalization of sports betting has not led to significant new levels of employment in the Commonwealth, and mobile operators spent about 4% of payments overall on Massachusetts businesses in contrast to 45.8% of payments by casinos. Sports betting’s positive impact on the economy is largely due to the revenue it generates for the Commonwealth and the subsequent expenditure of those funds.