以前早期退職が寿命を縮める、という研究結果を紹介したことがあったが、それを否定する研究がノルウェーから出たEconomic Logic経由)。


This paper studies the relationship between retirement and mortality, using a unique administrative data set covering the full population of Norway. We make use of a series of retirement policy changes in Norway, which reduced the retirement age for a group of workers but not for others. By employing a difference-in-differences framework based on monthly birth cohort and treatment group status we first establish that the early retirement program significantly reduced the retirement age – this remains true when we account for program substitution, for example into the disability pension. Using instrumental variables estimation we find that retirement age has no effect on mortality.




Our results stem from a setting in which the eligibility age was reduced, first to 65 from 67, then progressively from 65 to 62. While we find no impact on subsequent mortality from this variation, it might be that other age ranges would have an impact. At even higher ages, there could be beneficial effects of early retirement if work then becomes increasingly demanding, whereas a lower age range in combination with a perceived pressure to leave employment might have the opposite effect. This could be an explanation of the results of Kuhn et al. (2010), who find higher mortality among male early pensioners. The early retirement age in their sample was quite low with an average age in the mid fifties, and the circumstances around the early retirement might indicate that many workers felt they were being pushed out of the labour market.



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