%0 Report %A Usui, Emiko %A Shimizutani, Satoshi %A Oshio, Takashi %T Are Japanese Men of Pensionable Age Underemployed or Overemployed? %D 2015 %8 2015 Dec %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 9620 %U https://www.iza.org/publications/dp9620 %X 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. %K hours constraints %K work hours %K pension benefits %K Japanese Study on Aging and Retirement (JSTAR) %K Health and Retirement Study (HRS) %K Japan