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Title: IQ and Income Inequality in a Sample of Sibling Pairs from Advantaged Family Backgrounds
Resulting in 1 citation.
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Murray, Charles A. |
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IQ and Income Inequality in a Sample of Sibling Pairs from Advantaged Family Backgrounds Presented: Atlanta, GA, American Economic Association Annual Meeting, January 2002 Cohort(s): NLSY79 Publisher: American Economic Association Keyword(s): Armed Forces Qualifications Test (AFQT); Family Background and Culture; Family Income; I.Q.; Income; Income Level; Modeling, Fixed Effects; Siblings; Socioeconomic Background Permission to reprint the abstract has not been received from the publisher. "The Bell Curve" (Richard Herrnstein and Murray, 1994) presented data on the independent effect of IQ on a wide variety of social and economic outcomes for members of the National Longitudinal Survey of Youth (NLSY). To control for socioeconomic background, we constructed an index using the standard three indicators: parental education, occupation, and income. Among the many threads in the response to "The Bell Curve," the following question arose: How much would the independent effect of IQ have been attenuated if a broader set of family background variables had been used as controls? To test this, Sanders Korenman and Christopher Winship conducted a fixed-effects analysis of the large number of siblings within the NLSY, in effect controlling not just for socioeconomic status, but for everything in the shared environment of the family. The results were that "[w]ith a few exceptions, the fixed-effects estimates for AFQT [the cognitive test used in the NLSY] are remarkably similar to the standard OLS and logit estimates" (Korenman and Winship, 2000 p.146). The independent effect of IQ is robust across methods. |
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Bibliography Citation
Murray, Charles A. "IQ and Income Inequality in a Sample of Sibling Pairs from Advantaged Family Backgrounds." Presented: Atlanta, GA, American Economic Association Annual Meeting, January 2002. |