Sorting and Long-Run Inequality

Working Paper: NBER ID: w7508

Authors: Raquel Fernández; Richard Rogerson

Abstract: Many social commentators have raised concerns over the possibility that increased sorting in a society can lead to greater inequality. To investigate this we construct a dynamic model of intergenerational education acquisition, fertility, and marital sorting and parameterize the steady state to match several basic empirical findings. Contrary to Kremer's (1997) finding of a basically insignificant effect of marital sorting on inequality, we find that increased marital sorting will significantly increase income inequality. Three factors are central to our findings: a negative correlation between fertility and education, a decreasing marginal effect of parental education on children's years of education, and wages that are sensitive to the relative supply of skilled workers.

Keywords: sorting; inequality; education; marital sorting

JEL Codes: D31; J12


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
higher fertility in lower-educated families (J13)fewer skilled children (J24)
increased parental education (I24)decreasing marginal effect on children's years of education (I21)
increase in skilled population (J24)affects wage distribution (J31)
increased marital sorting (J12)increase in income inequality (D31)
increased marital sorting (J12)tighter borrowing constraints for low-income families (G51)
tighter borrowing constraints for low-income families (G51)increase in income inequality (D31)

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