I look at prevention through an economic lens and make three main points. First, those advocating preventive measures are often asked how much money a given measure saves. This question is misguided. Rather preventive measures can be thought of as insurance, with a certain cost in the present...

This paper offers an approach to assessing quality-of-life, based on Sen's (1985) theory, which it uses to understand loss in quality-of-life due to mobility-impairment. Specifically, it provides a theoretical analysis which is able to account for the possibility that some functionings may...