Computation of efficient targets in DEA models with production trade-offs and weight restrictions

Computation of Congestion in DEA Models with Productions Trade-offs and Weight Restrictions

Our aim in this work is to determine congestion with productions trade-offs or, equivalently, under weights restrictions in data envelopment analysis (DEA). For this purpose, we review a two-model approach to evaluate congestion (Cooper et al, 1996), and after that we have brief view in relation with computation of efficient targets with production trade-off in Podinovski’s procedure (Podinovsk...

A one-model approach for Computation of congestion With productions trade-offs and weight restrictions

Differential Characteristics of Efficient Frontiers in DEA with Weight Restrictions

The non-differentiability and implicit definition of boundary of production possibility set (PPS) in data envelopment analysis (DEA) are two important difficulties for obtaining directional characteristics, including different elasticity measures and marginal rates of substitution. Also, imposing weight restrictions in DEA models have some shortcomings and misunderstandings. In this paper we ut...

Scale Efficient Targets in Production Systems With Two-stage Structure Under Imprecise Data Assumption

Traditional data envelopment analysis (DEA) models evaluate two-stage decision making unit (DMU) as a black box and neglect the connectivity may exist among the stages. This paper looks inside the system by considering the intermediate activities between the stages where the first stage uses inputs to produce outputs which are the inputs to the second stage along with its own inputs. Additional...

Scale Efficiency in DEA and DEA-R with Weight Restriction

In data envelopment analyze (DEA) the scale efficiency in the input-oriented CCR model is less than or equal to the scale efficiency in DEA based on the fractional analysis (DEA-R). Also, the scale efficiency in case of multiple inputs and one output and vice versa the scale efficiencies are equal in DEA and DEA-R. In this paper, first, DEA-R model with weight restrictions when there is relativ...