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...

Spousal characteristics such as age, height, and earnings are often used in social science research to infer social preferences. For example, a "male taller" norm has been inferred from the fact that fewer wives are taller than their husbands than would occur with random matching. The large...