DEA models with out explicit inputs or outputs: radial and nonradial approaches

Subject Areas : Data Envelopment Analysis

Zohreh Moghaddas ¹ ( Department of Electrical, Computer and Biomedical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran )

Received: 2019-01-15 Accepted : 2023-06-24 Published : 2022-12-01

Keywords: DEA, Efficiency, Data without inputs and outputs,

Abstract :

Many applications and studies are concerns about studying DEA mod-els without explicit inputs or outputs for performance evaluation ofDecision Making Units (DMUs). On basis of what provided in DEAliterature in this paper it has been veried that in the mentioned ap-proach convexity assumption has not been properly dealt with. Thus,a modied approach has been presented and for clarity, an applicationof the DEA models without inputs and outputs are presented.