Gong BH and RC Sickles (1992). “Finite Sample Evidence on the Performance of Stochastic Frontiers and Data Envelopment Analysis Using Panel Data.” J Econometrics 5: 259-284.
Gong BH and RC Sickles (1992). “Finite Sample Evidence on the Performance of Stochastic Frontiers and Data Envelopment Analysis Using Panel Data.” J Econometrics 5: 259-284.