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McKinley L. Blackburn has written:

'Are OLS estimates of the return to schooling biased downward?' -- subject(s): Ability, Economic aspects, Economic aspects of Ability, Effect of education on, Wages

'Unobserved ability, efficiency wages, and interindustry wage differentials' -- subject(s): Wages, Ability

'Changes in earnings differentials in the 1980s' -- subject(s): Wages, Statistics

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11y ago

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