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http://hdl.handle.net/10419/35958
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| Title: | | IQ and family background: are associations strong or weak?  |
| Authors: | | Björklund, Anders Eriksson, Karin Hederos Jäntti, Markus |
| Issue Date: | | 2009 |
| Series/Report no.: | | IZA Discussion Papers 4305 |
| 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: | | urn:nbn:de:101:1-20090825440 |
| Document Type: | | Working Paper |
| Appears in Collections: | | IZA Discussion Papers, Forschungsinstitut zur Zukunft der Arbeit (IZA)
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