Unlike most of the literature concerning the effects of nonstandard work, we examine the long-term impact of part-time work. Our main focus is on earnings and several important benefits. As might be expected, voluntary part-time work while in school increases earnings of both women and men, whereas involuntary part-time work has no significant impact. Surprisingly, however, voluntary part-time work while not in school has a substantial positive effect for women but is not significant for men. Furthermore, we find that the provision of health insurance, profit-sharing, defined-benefit and defined-contribution plans is primarily determined by factors other than work experience.