Abstract. This paper examines gender inequality in academic careers by applying Merton's concept of 'socially expected durations' (SEDs). Women's relatively slower advancement along the academic hierarchy has been traditionally attributed to their traits and constraints. The concept of SED shifts attention from the individual to the organizational level, and the actual and expected augmented durations between promotions for women are viewed as part of the structural arrangements of academic institutions and their culture. It is argued that because of the distinct characteristics of academic careers, time-in-rank is an important dimension distinguishing among otherwise very uniform occupational roles and career patterns. The implications of conceptualizing career discrepancies in terms of socially expected durations are discussed.One of the basic mechanisms which creates gender inequality in academia is the widely known fact that women's career progress in the academic hierarchy is slower than that of men. The question of why this is so has been addressed from various points of view and explained by different factors. One popular explanation relates female academics' slow career advancement to their family responsibilities and family-work role conflict. Women, it is argued, have less time, energy, and commitment to invest in their professional careers and are therefore less productive scientifically than men. Since research productivity is the principal basis for promotion in academia women progress more slowly, hold lower ranks, and are older at each rank than comparable men. This approach focuses on individual-level factors, such as motivation and human capital, while ignoring contextual factors, such as market conditions, employers' attitudes and inclinations, sex-stereotypes, and organizational opportunity structures (e.g., Hartman 1987;Bielby and Bielby 1988).Moreover, a growing number of recent studies on women in academia find that married women with or without children publish as much or slightly more than single or childless faculty women (Astin and Davis 1985;Zuckerman and Cole 1987; Fox and Faver 1985;Wanner et al. 1981; Kyvic 1990;Toren 1991;Simon 1991). These findings are counter-intuitive and not yet well-understood; they have nevertheless dented our belief that family and children are the principal obstacle hindering the performance and promotion of faculty women.In this paper the temporal dimension of academics' careers, and particularly the slower progress of women as compared to their male colleagues, is perceived as part of the organizational structure and culture of institutions of higher education. I argue that the differential pacing of upward mobility of men and women cannot be accounted for by individual characteristics alone, such as talent, human capital, motivation, or productivity but is attributable, at least in part, to different timetables