Educational Homogamy: How Much is Opportunities?
研究发现，教育同质婚中约一半的匹配可归因于就读同一或邻近教育机构，另一半则源于教育本身的直接效应，可能与家庭生产互补性有关。
Individuals match on length and type of education. We find that around half of the systematic sorting on education is explained by the tendency of individuals to marry someone who went to the same educational institution or to an institution near them. This may be due to low search frictions or selection of people with the same preferences into the same institutions. The residual half of the systematic sorting on education is a direct effect of partners ' education, which is potentially explained by complementarities in household production in couples with same education.