Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/35958 
Year of Publication: 
2009
Series/Report no.: 
IZA Discussion Papers No. 4305
Publisher: 
Institute for the Study of Labor (IZA), Bonn
Abstract: 
For the purpose of understanding the underlying mechanisms behind intergenerational associations in income and education, recent studies have explored the intergenerational transmission of abilities. We use a large representative sample of Swedish men to examine both intergenerational and sibling correlations in IQ. Since siblings share both parental factors and neighbourhood influences, the sibling correlation is a broader measure of the importance of family background than the intergenerational correlation. We use IQ data from the Swedish military enlistment tests. The correlation in IQ between fathers (born 1951-1956) and sons (born 1966-1980) is estimated to 0.347. The corresponding estimate for brothers (born 1951-1968) is 0.473, suggesting that family background explains approximately 50% of a person's IQ. Estimating sibling correlations in IQ we thus find that family background has a substantially larger impact on IQ than has been indicated by previous studies examining only intergenerational correlations in IQ.
Subjects: 
Ability
intergenerational mobility
family background
JEL: 
J0
I0
J1
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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