1Lechner,M.,Miquel,R.and Wunsch,C.Long-run Effects of Public Sector Sponsored Training in West Germany[J].Journal of the European Economic Association,2011,9(4):742-784.
2Kluve,J.,Schneider,H.,Uhlendorffand,A.and Zhao,Z.Evaluating Continuous Training Programmes by Using the Generalized Propensity Score[J].Journal of the Royal Statistical Society,2012,175(2):587-617.
3Heckman,J.and Navarro,S.Dynamic Discrete Choice and Dynamic Treatment Effects[J].Journal of Econometrics,2007,136(2):341-396.
4Schochet,P.and Burghardt,J.Do Job Corps Performance Measures Track Program Impacts?[J].Journal of Policy Analysis and Management,2008,27(3):556-576.
5Flores,C.,Flores-Lagunes,A.,Gonzalez,A.and Neuman,T.Estimating the Effects of Length of Exposure to Instruction in a Training Program:The Case of Job Corps[J].Review of Economics and Statistics,2012,94(1):153-171.