Aydın Çelen

Performance assessment of Turkish electricity distribution utilities: An application of combined FAHP/TOPSIS/DEA methodology to incorporate quality of service

Neşe Yalçın, Aydın Çelen, Aydin Çelen, 2012 .

Efficiency and productivity (TFP) of the Turkish electricity distribution companies: An application of two-stage (DEA&Tobit) analysis

Aydın Çelen, Aydin Çelen, 2013 .

The effect of merger and consolidation activities on the efficiency of electricity distribution regions in Turkey

Aydın Çelen, Aydin Çelen, 2013 .