Search Results - subject:"True Random Effect"

Efficiency of health systems in sub-Sahara Africa: a comparative analysis of time varying stochastic frontier models

Novignon, Jacob; Lawanson, Akanni - Volkswirtschaftliche Fakultät, … - 2014

omission of unobserved heterogeneity may lead to bias in estimated inefficiency. The ‘true’ random effect model was identified …’ random effect model were however preferable after controlling for unobserved heterogeneity which was captured in the … controllable input. The results show some variations in efficiency estimates among the various models. Estimates from the ‘true …

Persistent link: https://www.econbiz.de/10011109561

Some New Semiparametric Panel Stochastic Frontier Models

Hajargasht, Gholamreza - Econometric Society - 2004

Greene (2002, 2004) examines several extensions of the panel stochastic frontier models including what he calls the â€œtrueâ€ fixed and random effect stochastic frontier models. In this paper we extend these two models to their semiparametric alternatives where the functional form for...

Persistent link: https://www.econbiz.de/10005130155