Biologists have devoted much attention to assortative mating or homogamy, the tendency for sexual species to mate with similar others. In contrast, there has been little theoretical work on the broader phenomenon of homophily, the tendency for individuals to interact with similar others. Yet this behaviour is also widely observed in nature. Here, we model how natural selection can give rise to ...

This paper studies the formation of marriage relationships between two households in 19 century, Tama, Japan. Previous studies on marriage market or partner selection in the Japanese past tended to rely either on information from a single village in case of statistical analysis, or on collection of oral histories. By using the information from a household register that covers 35 villages, and a...

Understanding the social and biological mechanisms that lead to homogamy (similar individuals marrying one another) has been a long-standing issue across many fields of scientific inquiry. Using a nationally representative sample of non-Hispanic white US adults from the Health and Retirement Study and information from 1.7 million single-nucleotide polymorphisms, we compare genetic similarity am...

Abstract Many studies have focused on how demographic dynamics, such as changes in marriage patterns and the increasing share of households headed by a single adult, may contribute to rising earnings inequality. Here we instead ask differences between countries underpin household inequality them, concentrating economic homogamy proportion woman man. We use data 28 OECD from 2016 wave Luxembourg...

Abstract We develop a method which assumes that marital preferences are characterized either by the scalar-valued measure proposed Liu and Lu, or matrix-valued generalized Liu–Lu measure. The new transforms an observed contingency table into counterfactual while preserving its (generalized) value. After exploring some analytical properties of method, we illustrate application decomposing change...