State Lotteries, Isolation and Economic Growth in the U.S.

This paper uses a Granger causality test adapted for use with cross-section time series data, to (1) test the relationship between lottery revenue and state economic growth (per capita income), and (2) address the importance of cross-border purchases in the relationship. Neither issue has been empirically tested previously. Previous evidence (Caudill, et al., 1995) suggests that states surrounded by lotteries are more likely than isolated states to introduce lotteries. But the empirical results here suggest that lotteries do not contribute to economic growth unless the state is isolated from other state lotteries. The importance of isolation suggests that cross-border purchases (exports) of lottery tickets have a significant impact on the effectiveness of lotteries as fiscal policies, and that "defensive" lotteries (those introduced to keep citizens from buying tickets from neighboring states) are ineffective.