Kuosmanen T, L Cherchye and T Sipilainen (2006). “The Law of One Price in Data Envelopment Analysis: Restricting Weight Flexibility across Firms.” EJOR 170(3): 735-757.
Kuosmanen T, L Cherchye and T Sipilainen (2006). “The Law of One Price in Data Envelopment Analysis: Restricting Weight Flexibility across Firms.” EJOR 170(3): 735-757.