TY - BOOK AU - Angrist, J. D. and Pischke, J. TI - Mostly Harmless Econometrics: an Empiricist's Companion SN - 9780691120355 AV - HB 139 .A54 2009 PY - 2009/// CY - New Jersey PB - Princeton University Press KW - Econometrics KW - Regression analysis N1 - Includes bibliographical references and index ER -