NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Lasse Eika

Statistics Norway
Akersveien 26
0177, Oslo, Norway

E-Mail: Lasse.Eika@ssb.no

NBER Working Papers and Publications

July 2014Educational Assortative Mating and Household Income Inequality
with Magne Mogstad, Basit Zafar: w20271
We investigate the pattern of educational assortative mating, its evolution over time, and its impact on household income inequality. To these ends, we use rich data from the U.S. and Norway over the period 1980-2007. We find evidence of positive assortative mating at all levels of education in both countries. However, the time trends vary by the level of education: Among college graduates, assortative mating has been declining over time, whereas low educated are increasingly sorting into internally homogenous marriages. When looking within the group of college educated, we find strong but declining assortative mating by academic major. These findings motivate and guide a decomposition analysis, where we quantify the contribution of various factors to the distribution of household income. ...
 
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