Halpern et al. ended up demonstrating the importance of loss aversion in two different ways. The more obvious is that smokers are far more likely to quit if they stand to lose money if they fail. The more subtle is that the very prospect of incurring losses makes people far less willing to enter a smoking-cessation program. Despite the greater comparative effectiveness of the deposit program, the reward program is likely to be more successful, because far more people will sign up for it.