In a model of household resource allocation and the labor market we show that equilibria satisfy static efficiency but are dynamically inefficient. A small difference in technology of production of the household good, or in preference for it, magnifies relative costs of external work for women. They devote more time to the production of the household good. But this choice lowers human capital embodied in women and changes the perceptions of women's abilities. Women are relegated to low productivity work in a self-reinforcing low-level trap that lowers their self-esteem. But modern information technologies (IT) make flexi-time, high paying, work at home feasible for women. They lower matching costs, compensating for lack of mobility. Women will more easily find jobs that match their preferences and attributes. Society will gain because dynamic inefficiencies will be removed but greater diversity preserved. Since entrenched perceptions take time to change special policies are required. . The author's model makes it possible to distinguish among the distortion that occur, and identify targeted policy interventions. There is evidence that the predictions of the model are being borne out in the use of IT. It was not the small difference in women's biology and preferences that harmed them as much as the absence of opportunities that matched these qualities. Technological change can, with a little help, remedy this. Since costs of mobility and potential contributions of women are particularly high in developing countries, developing women will hasten development.