Yazar "Ülengin, Füsun" için Scopus İndeksli Yayınlar Koleksiyonu listeleme
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Efficiency analysis of emergency departments in metropolitan areas
Akkan, Can; Almula Karadayı, Melis; Ekinci, Yeliz; Ülengin, Füsun; Uray, Nimet; Karaosmanoğlu, Elif (Elsevier Ltd, 2020)The demand in the healthcare industry is increasing exponentially due to aging population of the world and this is leading to a rapid increase in the cost of healthcare. The emergency departments of the hospitals are the ... -
Enhanced performance assessment of airlines with integrated balanced scorecard, network-based superefficiency DEA and PCA methods
Aydın, Umut; Almula Karadayı, Melis; Ülengin, Füsun; Ülengin, Kemal Burç (Springer Science and Business Media Deutschland GmbH, 2021)In the last decade, due to the aggressively increasing competition in the airline industry, strategic decisions to improve airline performance have become crucial. However, evaluating airline efficiency is an extremely ... -
How do airlines survive? An integrated efficiency analysis on the survival of airlines
Kaya, Gizem; Aydın, Umut; Ülengin, Burç; Karadayı, Melis Almula; Ülengin, Füsun (Elsevier Ltd, 2023)Airline managers must prepare effective strategies to cope with fluctuations and enhance the performance and competitiveness of their companies. Airline performance evaluation also requires a multidimensional perspective ... -
How efficient airways act as role models and in what dimensions? A superefficiency DEA model enhanced by social network analysis
Aydın, Umut; Almula Karadayı, Melis; Ülengin, Füsun (Elsevier, 2020)In this empirical study, a five-stage methodology is used to examine the efficiency of 45 worldwide known airline companies from the financial, operation and marketing perspectives. Initially, the superefficient data ... -
Integrated methodology for evaluating the efficiency of airports: A case study in Turkey
Kaya, Gizem; Aydın, Umut; Karadayı, Melis Almula; Ülengin, Füsun; Ülengin, Burç; İçken, Ayhan (Elsevier Ltd, 2022)Airports play an important role in the economic development of countries. Efficiency analyses of airports are crucial for providing an important roadmap to airport authorities and for helping to benchmark their airports ...