Building on standard marital matching models, we show that a variety of underlying social preferences about a given trait all generate positive assortative matching on that trait, and hence the same distribution of spousal trait differences in equilibrium. Applying this result to U.S. Census and...

The number of young people is reaching unprecedented levels in most developing countries. In many countries, especially in East Asia and Latin America, youth populations are at or near their peak, and will decline in coming decades. In other countries, especially in Africa and South Asia, youth...