We argue that risk averse individuals prefer to increase their longevity in the direction of rectangularization of the survival curve instead of an upward shift of that curve. Risk aversion is measured by the concept of fear of ruin.

Rectangularization of the survival probability seems to be an ongoing process. It results from a higher concentration of the ages at death; but it can be reversed by a continuous increase in the limit of life time. In this paper, we assume that these two factors are endogenous and we show that...