In most industrial countries, public pension systems redistribute from workers to retired people, not from high-income to low-income earners. They are close actuarial fairness. However, they are not all equivalent. In particular, some pension benefits are linked to full lifetime average earnings, while others are only linked to partial earnings history. In the latter case, we then show in this article that an actuarially fair pay-as-you-go pension system can both reduce lifetime income inequality and enhance economic growth. We also shed light on the dilemma between inequality and economic growth in retirement systems: greater progressivity results in less lifetime inequlity but also less growth.
In many European countries, population aging had led to debate about a switch from conventional unfunded public pension systems to notional systems characterized by individual accounts. In this article, we develop an overlapping generations model in which endogenous growth is based on an accumulation of knowledge driven by the proportion of skilled workers and by the time they have spent in training. In such a framework, we show that conventional pension systems, contrary to notional systems, can enhance economic growth by linking bene…ts only to the partial earnings history. Thus, to ensure economic growth, the optimal adjustment to increased longevity could consist in increasing the size of existing retirement systems rather than switching to notional systems.
To lower the forecasted increase in the social security burden linked to population aging, delaying the legal age of retirement has been privileged throughout industrialized countries. Compared with a uniform delay, some argue that those who have entered precociously the labor market should be allowed to retire earlier. They assert that such a ‘long career’ exception is all the more justified that those unskilled workers live also less long due to heavier and potentially health-damaging jobs. In this paper, we then study macroeconomic and distributional consequences of global gain in life expectancy, with or without the postponement of the legal age of retirement and with or without a ‘long career’ exception. By considering a framework where individuals decide to acquire skills depending on economic incentives and differential mortality, we focus particularly on spillover effects possibly generated by education. We show in particular that introducing a ‘long career’ exception cannot be to the advantage of future unskilled workers unless education yields no spillover effects.
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