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When opportunity knocks, who answers? : new evidence on college achievement awards
Angrist, Joshua D.; Oreopoulos, Philip; Williams, Tyler - In: Journal of human resources : JHR 49 (2014) 3, pp. 572-610
Persistent link: https://www.econbiz.de/10010409892
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Comment on James J. Heckman, "Instrumental variables: a study of implicit behavioral assumptions used in making program evaluations"
Angrist, Joshua D.; Imbens, Guido - In: Journal of human resources : JHR 34 (1999) 4, pp. 823-827
Persistent link: https://www.econbiz.de/10001432883
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Instrumental variables : response to Angrist and Imbens
Heckman, James J. - In: Journal of human resources : JHR 34 (1999) 4, pp. 828-837
Persistent link: https://www.econbiz.de/10001432889
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Comments - Comment on James J Heckman, "Instrumental Variables: A Study of Implicit Behavioral Assumptions Used in Making Program Evaluations"
Angrist, Joshua D.; Imbens, Guido W. - In: Journal of human resources : JHR 34 (1999) 4, pp. 823-827
Persistent link: https://www.econbiz.de/10007818548