Volume 46 of Advances in Econometrics presents essays in honor of Subhal Kumbhakar. His influence on the applied productivity and efficiency profession is legion, as evidenced by his voluminous body of research, must read textbook and attendance at sessions where he is presenting or his work is...

This paper primarily reviews the panel stochastic frontier (SF) model in which the composite error term εit has four components, i.e. εit=τi−ηi+vit−uit, where ηi and uit are the persistent and transient inefficiency components, τi is the random firm effect and vit is the random noise....

A general assumption of the standard hedonic price model is that producers produce outputs/ services efficiently, and deviations from this situation are assumed to involve either overcharging or undercharging. Using the profit maximising behaviour, we derive an alternative hedonic model to show...