Media type: E-Article Title: How the Timing of Grade Retention Affects Outcomes: Identification and Estimation of Time-Varying Treatment Effects Contributor: Fruehwirth, Jane Cooley; Navarro, Salvador; Takahashi, Yuya Published: University of Chicago Press, 2016 Published in: Journal of Labor Economics, 34 (2016) 4, Seite 979-1021 Language: English DOI: 10.1086/686262 ISSN: 0734-306X; 1537-5307 Keywords: Economics and Econometrics ; Industrial relations Origination: Footnote: