Dynamic Efficiency Measurement with the Fuzzy Malmquist Productivity Index: ÇAYKUR Case

Abstract

One of the most important issues in the management of businesses is performance evaluation. Measuring the efficiency organizations and providing appropriate solutions for inefficient units ensures increased productivity in units. Public and private tea companies operating in Turkey need to make strategic decisions on efficient resource utilization in order to increase their competitiveness in both the national and global markets. In this study, the increase or decrease in the efficiency of the General Directorate of Tea Enterprises (ÇAYKUR) factories, whose share in tea production in Turkey is about 50%, were investigated on an annual basis. In the research, the Malmquist Total Factor Productivity Index using exact data and Jahanshahloo, Lotfi & Valami Model using interval data were applied. The study contributes to the literature due to the limited number of studies to measure the change in efficiency of tea businesses in an uncertain environment. In addition, the results of the study are expected to assist managers and other stakeholders in the tea sector in strategy development and decision making.

Keywords

• ÇAYKUR,
• Data Envelopment Analysis
• Malmquist Total Factor Productivity Index
• Interval Data
• Fuzzy Logic.

Bulanık Malmquist Verimlilik Endeksi ile Dinamik Etkinlik Ölçümü: ÇAYKUR Örneği

Öz

İşletmelerin yönetiminde en önemli konulardan biri de performans değerlendirmesidir. Kuruluşların etkinliğini hesaplamak ve verimsiz birimler için uygun çözümler sunmak, birimlerde üretkenliğin artışını sağlamaktadır. Türkiye’de faaliyette bulunan kamu ve özel çay firmaları hem ulusal hem de küresel pazarda rekabet gücünü artırmak için etkin kaynak kullanımına yönelik stratejik kararlar vermesi gerekmektedir. Bu çalışmada, Türkiye’deki çay üretiminde payı yaklaşık %50 olan Çay İşletmeleri Genel Müdürlüğü (ÇAYKUR) Fabrikalarının, yıllık bazda etkinliğinin artış veya azalış durumları araştırılmıştır. Araştırmada kesin verilerin kullanıldığı Malmquist Toplam Faktör Verimlilik Endeksi (MTFVE) ile aralıklı verilerin kullanıldığı Jahanshahloo, Lotfi & Valami Modeli uygulanmıştır. Araştırma, çay işletmelerinin belirsizlik ortamında etkinlik değişimini ölçmeye yönelik araştırmaların sınırlı olmasından dolayı literatüre katkı sağlamaktadır. Ayrıca, çalışma sonuçlarının çay sektöründeki yönetici ve diğer paydaşlara strateji geliştirmede ve karar vermede yardımcı olması beklenmektedir.

Anahtar Kelimeler

• ÇAYKUR
• Veri Zarflama Analizi
• Malmquist Toplam Faktör Verimlilik Endeksi
• Aralıklı Veri
• Bulanık Mantık.

Kaynakça

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