Our societies are witnessing a steady increase in longevity. This demographic evolution is accompanied by some convergence across countries, whereas substantial longevity inequalities persist within nations. The goal of this paper is to survey some crucial implications of changing longevity on...

This paper provides a closed-form solution for the health capital model of health demand. The results are exploited in order to prove analytically the comparative dynamics of the model. Results are derived for the so called pure investment model, the pure consumption model and a combination of...

In this paper we present a theory of health investment when there are multiple causes of death. Since there are several risks competing for one's life, the health investments in avoiding different causes of death are not independent in general. We analyze the optimal investment rules and the...