Huh? How do you infer that individual effort was controlled for by quoting "each... | Hacker News

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		jey on Aug 12, 2009 \| parent \| context \| favorite \| on: Taking more math in school will raise your income Huh? How do you infer that individual effort was controlled for by quoting "each extra required maths course raised the annual income of black males by 15%"?

shawndrost on Aug 12, 2009 [–]

"each extra -required- maths course" -- as in required by the school. This is also made clear in the linked paper: http://www.columbia.edu/~jg2394/papers/jobmarket.pdf

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