In addition, the report finds that in about 60% of working poor households, the main source of earnings is non-standard work. One-quarter of men and 40% of women are in non-standard employment, mainly stemming from gender imbalances in part-time work. Women often work part-time, since this facilitates combining work and family responsibilities, but this frequently comes at a cost to their longterm career and earning prospects (OECD, 2012). Youth and workers with a lower level of education are over-represented among the non-standard employed adults. Close to half of temporary workers are under 30 years of age, and the incidence of temporary employment is 30% higher for those with lower levels of education than for those with medium levels (OECD, 2015a).