The commissioner of health is concerned about the increasing number of reported cases of preventable childhood diseases, such as polio and rubella. It appears that a growing number of young children are not being vaccinated against childhood diseases as they should be. Two proposals to address the problem are sitting on the commissioner's desk. The programs have equals costs, but the commissioner has funding for only one. The first proposal involves providing free vaccinations at clinics around the country. The benefits from a free vaccination program are likely to be experienced immediately in terms of a drop in the number of reported cases of illness. The second program calls for educating young married couples about the benefits of vaccination. The benefits in this instance will not be felt for some years. The commissioner wants to use cost-benefit analysis to determine which proposal should be implemented. Explain to the commissioner the critical role the discount rate plays in determining which program is chosen. In particular, which program is more likely to be chosen if a relatively low discount rate is selected? Why?