Causal inferences: identical twins help and clarity about necessary assumptions is critical.
نویسندگان
چکیده
a Department of Economics, Central Michigan University, Mount Pleasant, MI 48859, USA b William R. Kenan, Jr. Professor of Economics and Sociology, McNeil 160, 3718 Locust Walk, University of Pennsylvania, Philadelphia, PA 19104-6297, USA c Fredrick J. Warren Professor of Demography, McNeil 272, 3718 Locust Walk, University of Pennsylvania, Philadelphia, PA 19104-6297, USA d School of Economics and Management, Southeast University, Jiangsu, China e Department of Economics, Chinese University of Hong Kong, Shatin, NT, Hong Kong
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ورودعنوان ژورنال:
- Social science & medicine
دوره 127 شماره
صفحات -
تاریخ انتشار 2015