TY - BOOK AU - Angrist, Joshua David AU - Pischke, Jörn-Steffen TI - Mostly harmless econometrics : an empiricist's companion SN - 9780691120348 SN - 200802791 U1 - 330.015195 ANG PY - 2009/// CY - Princeton, NJ PB - Princeton University Press KW - Econometrics KW - Regression Analysis N1 - Includes bibliographical references (p. [339]-359) and index ER -