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Taking the easy way out : how the GED testing program induces students to drop out
Heckman, James J.; Humphries, John Eric; LaFontaine, Paul A. - In: Journal of labor economics 30 (2012) 3, pp. 495-520
Persistent link: https://www.econbiz.de/10009659709
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Bias-corrected estimates of GED returns
Heckman, James J.; LaFontaine, Paul A. - In: Journal of labor economics 24 (2006) 3, pp. 661-700
Persistent link: https://www.econbiz.de/10003365450