Other language title :
مقياس كارايي در DEA و DEA-R با محدوديت وزني
Title of article :
Scale Efficiency in DEA and DEA-R with Weight Restrictions
Author/Authors :
Nazari, M Department of Applied Mathematics - Science and Research Branch Azad University, Fars , Mozaffari, M R Department of Applied Mathematics - Shiraz Branch Azad University, Shiraz , Gerami, J Department of Applied Mathematics - Science and Research Branch Azad University, Fars
Abstract :
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 relative data
is recommended. Second, the scale efficiencies in a constant return to scale are compared with each
other in DEA and DEA-R models. At the end, a numerical example is provided for the proposed models
with 27DMUs.
Farsi abstract :
در تحليل پوششي داده ها مقياس كارايي در مدل CCR با ماهيت ورودي كوچكتر يا مساوي مقياس كارايي در تحليل پوششي داده ها مبتني بر تحليل كسري (DEA-R) مي باشد . همچنين مقياس كارايي در حالت چند ورودي و يك خروجي و بالعكس مقياس هاي كارايي در DEA و DEA-R برابر هستند. در اين مقاله اولا مدل DEA-R با محدوديت وزني در حالتي كه داده ها نسبتي باشد پيشنهاد مي شود. ثانيا مقياس هاي كارايي در حالت بازده به مقياس ثابت در DEA و DEA-R با يكديگر مقايسه مي شود. در خاتمه مثال عددي با 27 واحد تصميم گيرنده براي مدل هاي پيشنهادي ارايه مي شود .
Keywords :
weight restrictions , DEA , DEA-R
Journal title :
Astroparticle Physics
