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Ebrahimi, Morteza, Bagherzadeh Valami, Hadi, Karamali, Leila, Taeb, Zohreh. (1402). Directional returns to scale in data envelopment analysis. نشریه هنرهای کاربردی, 15(2), 359-367. doi: 10.22075/ijnaa.2023.29727.4245
Morteza Ebrahimi; Hadi Bagherzadeh Valami; Leila Karamali; Zohreh Taeb. "Directional returns to scale in data envelopment analysis". نشریه هنرهای کاربردی, 15, 2, 1402, 359-367. doi: 10.22075/ijnaa.2023.29727.4245
Ebrahimi, Morteza, Bagherzadeh Valami, Hadi, Karamali, Leila, Taeb, Zohreh. (1402). 'Directional returns to scale in data envelopment analysis', نشریه هنرهای کاربردی, 15(2), pp. 359-367. doi: 10.22075/ijnaa.2023.29727.4245
Ebrahimi, Morteza, Bagherzadeh Valami, Hadi, Karamali, Leila, Taeb, Zohreh. Directional returns to scale in data envelopment analysis. نشریه هنرهای کاربردی, 1402; 15(2): 359-367. doi: 10.22075/ijnaa.2023.29727.4245

Directional returns to scale in data envelopment analysis

International Journal of Nonlinear Analysis and Applications
مقاله 29، دوره 15، شماره 2، اردیبهشت 2024، صفحه 359-367    اصل مقاله (532.14 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22075/ijnaa.2023.29727.4245
نویسندگان
Morteza Ebrahimi؛ Hadi Bagherzadeh Valami* ؛ Leila Karamali؛ Zohreh Taeb
Department of Applied Mathematics, Shahre Rey Branch, Islamic Azad University, Tehran, Iran
تاریخ دریافت: 18 بهمن 1401،  تاریخ بازنگری: 01 اسفند 1401،  تاریخ پذیرش: 11 اسفند 1401 
چکیده
In evaluating the DMUs, two factors, namely the efficiency and the production size, are considered. When the production size of a unit is not optimal, its RTS determines that changing the resources in which direction, would enhance its productivity. In most past research, RTS is considered to be increasing or decreasing, and frontier analysis is used to determine it. In this paper, a method based on MPSS is developed that in addition to determining the RTS for each unit in a directional manner, the shortest changes in resources for achieving the suitable production size are also obtained. In this approach, the computational complexity and ambiguity in the unit’s RTS are absent.
کلیدواژه‌ها
envelopment analysis؛ returns to scale؛ MPSS
مراجع

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