TY - BOOK A1 - Angrist, Joshua D. A1 - Pischke, Jörn-Steffen T1 - Mostly harmless econometrics: An empiricist’s companion Y1 - 2008 DO - 10.2307/j.ctvcm4j72 UR - https://doi.org/10.2307/j.ctvcm4j72 PB - New Jersey: Princeton University Press ER -