Post T (2001). “Estimating Non-Convex Production Sets – Imposing Convex Input Sets and Output Sets in Data Envelopment Analysis.” EJOR 131(1): 132-142.
Post T (2001). “Estimating Non-Convex Production Sets – Imposing Convex Input Sets and Output Sets in Data Envelopment Analysis.” EJOR 131(1): 132-142.