We develop a model in which workers tend to work too much when young because they can not or do not want to see the consequences on their health and on their capacity to work for a longer period. To force them to better distribute their work efforts over

This paper studies the optimal linear pension scheme when society consists of rational and myopic individuals. Myopic individuals have, ex ante, a strong preference for the present even though, ex post, they would regret not to have saved enough. While rational and myopic persons share the same...