"In this study we use survival or event history analysis to explore the effect of international mobility, gender and productivity on career development of researchers in CONICET life science research institutes in Buenos Aires. We find support for our hypothesis that various productivity measures can explain the likelihood of promotion. Given the same level of productivity, female researchers tend to take longer to being promoted. Unconditionally international work experience has a positive effect on the hazard of being promoted. Controlled for by productivity this effect is no longer significant. Unproductive stays abroad do not reduce the average time for promotion."