This paper applies the semi-parametric Cox regression approach to model unemployment duration in five Central and Eastern European countries. The Cox proportional hazards models and the Cox regression models with a time-dependent covariate are developed, and the results are interpreted and...

The nonparametric data envelopment analysis (DEA) literature on environmental efficiency (EE) considers handling undesirable outputs in two alternative ways: either in their original forms with the assumption that these are weakly disposable or in various translated forms with the assumption...