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D I S C U S S I O N P A P E R S E R I EIZA Discussion Papers often represent preliminary work and are circulated to encourage discussion. Citation of such a paper should account for its provisional character. A revised version may be available directly from the author.IZA Discussion Paper No. 9620 December 2015
ABSTRACTAre Japanese Men of Pensionable Age Underemployed or Overemployed? *We investigate how Japanese men aged 60-74 adjust their workforce attachment after beginning to receive a public pension. Men who were employees at age 54 gradually move to part-time work or retire after beginning to receive pension benefits; those who continue working are more likely to be underemployed. Men self-employed at age 54, however, neither retire nor reduce their working hours even after beginning to receive pension benefits; these men are more likely to be overemployed. In contrast, U.S. men retire or move to part-time when they first claim Social Security; those who continue working as employees after Social Security starts are unlikely to be either over-or underemployed. Therefore, unlike U.S. men, Japanese men are not choosing the optimal pensionable age and labor hours to maximize their intertemporal utility.JEL Classification: J26, I10, H55