IJE TRANSACTIONS B: Applications Vol. 31, No. 2 (February 2018) 374-381   

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M. Sadat Rezaee, A. Haeri and S. Noori
( Received: July 09, 2017 – Accepted in Revised Form: October 12, 2017 )

Abstract    Vendors play a key role in their company's success, so having a vendor's performance evaluation system in order to identify strengths, areas of improvement and profitability in any company is essential. In this paper, first data envelopment analysis (DEA) which is a technique to evaluate the performance of decision-making units (DMUs) is studied. Then the efficiency scores of 66 automotive vendors based on the DEA (CCR) are calculated using Lingo software. Then, based on the efficiency scores of each vendor, improvement plan with the help of the dual DEA model is presented to increase efficiency scores of inefficient vendors. Finally, it will be clear that each inefficient vendor for improving the inefficiency should focus on which of the factors.


Keywords    Data envelopment analysis, Efficiency score, Decision making units (DMU), the dual DEA model, Improvement plan, automotive industry


چکیده    از آنجا که فروشندگان نقش کلیدی در موفقیت شرکت خود دارند بنابراین داشتن یک سیستم ارزیابی عملکرد فروشندگان به منظور شناخت نقاط قوت، حوزه­های نیازمند بهبود و ایجاد سودآوری در هر شرکتی ضروری میباشد. از اینرو در این مقاله ابتدا تکنیک تحلیل پوششی داده­ها (DEA) که یک روش مناسب برای ارزیابی عملکرد واحدهای تصمیم­گیرنده (DMUs) است، مورد بررسی قرار میگیرد و سپس امتیازات کارایی 66 فروشنده خودرو، بر اساس مدل DEA (CCR) در نرم افزارLingo محاسبه میشود. در آخر با توجه به امتیازات کارایی کسب شده برای هر فروشنده، برنامه بهبود توسط مدل دوگان DEA به منظور افزایش امتیازات کارایی فروشندگان ناکارا ارائه میشود و همچنین مشخص میشود که هر فروشنده ناکارا به منظور بهبود ناکارایی باید بیشتر روی کدام یک از معیارها تمرکز کند.


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