//-->
A semiparametric approach to the estimation of the stochastic frontier model with time-variant technical efficiency
Deng, Wen-shuenn, (2008)
Imposing and testing curvature conditions on a Box-Cox function
Koebel, Bertrand M., (2000)
Estimation and testing of instrumental mean and quantile regression models
Breunig, Christoph, (2013)
Matching as an econometric evaluation estimator : evidence from evaluating a job training programme
Heckman, James J., (1997)
Characterizing selection bias using experimental data
Heckman, James J., (1998)
Matching as an econometric evaluation estimator