Hukou, China's household registration system, affects access to public services and signals the strength of a person's local social network, guanxi. We use a collective model and data on household consumption and spouses' hukou status to show that hukou plays a crucial role in determining...

We document the degree of educational assortative mating, how it evolves over time, and the extent to which it differs between countries. Our analysis focuses on the U.S. but also uses data from Denmark, Germany, the U.K., and Norway. We find evidence of positive assortative mating at all levels...