Umeå Economic Studies, Department of Economics, Umeå University
No 716:
Earnings Mobility and Origin Dependence: What can twins say together with nonparametric econometrics?
William Nilsson ()
Abstract: This study focuses on earnings immobility and its relation
to the originin terms of both the social background and the initial
position in the earnings distribution. Twin data is used to reveal the
importance for the common background for immobility. A nonparametric
technique is used to study if the immobility varies over the distribution.
The results indicate strong immobility, an important effect of the
background, and that these effects vary over the distribution. For the male
monozygotic sample, the social background accounts for 71-88 percent of the
immobility in deciles 3 to 7, where the background is found to be most
important. The common background has its strongest impact in deciles 6 to
10 for the female sample, where these effects accounts for 66-77 percent of
the immobility. Comparing results for monozygotic and dizygotic twins also
indicate that genes play an important role in income immobility.
Keywords: Earnings mobility; nonparametric; twins; (follow links to similar papers)
JEL-Codes: C14; D63; I31; (follow links to similar papers)
21 pages, September 24, 2007
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