This paper investigates the impact of an increase in life expectancy on the level and the distribution of income in the presence of skill heterogeneity and automation. It shows analytically that an increase in life expectancy induces the replacement of low-skilled workers by automation capital and high-skilled workers. Moreover, it raises the skill premium and has an ambiguous effect on total income. A simulation exercise, based on US data, shows that an increase in life expectancy raises the level as well as the inequality of income. We consider redistributive policies that can mitigate some of the adverse effects of an increase in life expectancy for low-skilled workers.

本文研究了在存在技能异质性和自动化的情况下，预期寿命的增加对收入水平和分配的影响。分析表明，预期寿命的增加导致自动化资本和高技能工人取代低技能工人。此外，它提高了技能溢价并对总收入产生了模糊的影响。一项基于美国数据的模拟演练表明，预期寿命的增加会提高收入的不平等程度和不平等程度。我们考虑可以减轻低技能工人预期寿命延长的一些不利影响的再分配政策。