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A new model to measuring efficiency and returns to scale on data envelopment analysis

Publish Year: 1400
Type: Journal paper
Language: English
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JR_RIEJ-10-2_004

Index date: 18 January 2022

A new model to measuring efficiency and returns to scale on data envelopment analysis abstract

We extend the concept of returns to scale in Data Envelopment Analysis (DEA) to the weight restriction environments. By adding weight restrictions, the status of returns to scale, i.e. increasing, constant, and decreasing, may need a change. We first define "returns to scale" underweight restrictions and propose a method for identifying the status of returns to scale. Then, we demonstrated that this addition would usually narrow the region of the most productive scale size (MPSS). Finally, for an inefficient decision-making unit (DMU), we will present a simple rule for determining the status of returns to the scale of its projected DMU. Here, we carry out an empirical study to compare the proposed method's results with the BCC model. In addition, we demonstrate the change in the MPSS for both models. We have presented different models of DEA to determine returns to scale. Here, we suggested a model that determines the whole status to scale in decision-making units.Different models of DEA to determine returns to scale are presented. Here, we suggested a model that determines the whole status to scale in decision-making units.

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A new model to measuring efficiency and returns to scale on data envelopment analysis authors

Abbasali Monzeli

Department of Mathematics, Islamic Azad University, Central Tehran Branch, Tehran, Iran.

Behrouz Daneshian

Department of Mathematics, Islamic Azad University, Central Tehran Branch, Tehran, Iran.

Gasem Tohidi

Department of Mathematics, Islamic Azad University, Central Tehran Branch, Tehran, Iran.

Shabnam Razavian

Department of Mathematics, Islamic Azad University, South Tehran Branch, Tehran, Iran.

Masud Sanei

Department of Mathematics, Islamic Azad University, Central Tehran Branch, Tehran, Iran.