TY - RPRT AU - Adamopoulou, Effrosyni AU - Hannusch, Anne AU - Kopecky, Karen A. AU - Obermeier, Tim TI - Cohabitation, Child Development, and College Costs PY - 2025/Oct/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 18237 UR - https://www.iza.org/index.php/publications/dp18237 AB - US college-educated couples with children marry at higher rates than those without a college degree. We argue that marriage, which entails lower separation risk and more equitable asset division if separation occurs, provides insurance to the lower-earning spouse, facilitating child investment. Investing in children is more valuable for college-educated couples, who are more likely to send their children to college. Using an OLG model of marriage, cohabitation, wealth accumulation, and educational investments where college is costly and completion is risky, we find that high college costs reduce incentives to marry among couples without a college degree. These differences in union choice by education heighten differences in children’s educational attainment and reduce intergenerational mobility. KW - college costs KW - human capital accumulation KW - child development KW - marriage KW - cohabitation KW - intergenerational mobility ER -