While advertising is critical to maintaining Lottery sales, additional expenditures may have a limited effect on net revenues and transfers to the Florida Educational Enhancement Trust Fund. Lottery ticket sales also are affected by factors such as jackpot amounts and retailer density, which are more highly related to net Lottery profits than advertising expenditures. Florida's compulsive gambling helpline receives few calls specifically related to the Lottery, and there does not appear to be a link between Lottery advertising spending and Lottery-related calls to the state's gambling helpline. Instead, Lottery-related calls are more strongly associated with state unemployment rates.