Cooper WW, DKS Park and P Ciurana (2000). “Marginal Rates and Elasticities of Substitution with Additive Models in DEA.” JPA 13(2): 105-123.
Cooper WW, DKS Park and P Ciurana (2000). “Marginal Rates and Elasticities of Substitution with Additive Models in DEA.” JPA 13(2): 105-123.