This study investigates CEO turnover and corporate performance relationship as a measure of the effectiveness of a corporate governance system. The impact of different financial accounting regimes on the turnover/performance relationship is also analyzed. If systems replace poorly performing managers, they are considered as not ineffective. The results provide evidence that corporate governance systems with poor governance characteristics may not be ineffective, due to the existence of alternative governance mechanisms. The disciplinary CEO turnover is found to be more strongly associated with corporate performance compared to voluntary CEO turnover, whereas in the IFRS subsample the relationship is stronger with contemporaneous performance measures.
ÖzetGünümüzdeki rekabetçi ortamın getirdiği etki ile kuruluşların satınalma yöneticileri, tedarikçilerin nasıl seçileceğine dair zor bir kararla karşı karşıya kalmaktadır. Bununla birlikte, tedarikçi seçim problemleri karmaşıktır, çünkü çok sayıda kriterin dikkate alınması gerekir ve genellikle, bazı kriterler kesin olarak değerlendirilemez. Ayrıca, verilecek kararlarda tedarikçi performanslarının ve bilinmeyen bilgilerin dalgalanmaları her zaman mevcut olacaktır. Bu çalışmada entegre çok kriterli karar verme yöntemleri kullanılmıştır. İlk olarak tedarikçi seçimi için literatür ve sektörel bazlı karar verme kriterleri belirlenmiştir. Belirlenen kriterlerin bulanık analitik hiyerarşi prosesi (Bulanık AHP) kullanarak ağırlıkları tespit edilmiştir. Daha sonra tedarikçinin genel performansını değerlendirmek için oran analizine (bulanık MOORA) dayalı olan bulanık çok amaçlı bir optimizasyon modeli uygulanmıştır. Sonuçlar, bu modelin belirlenen uygun kriterler ile tedarikçilerin seçimini etkili bir şekilde gerçekleştirebileceğini göstermektedir. AbstractWith the impact of today's competitive environment, the purchasing managers of the organizations face a difficult decision about how to select suppliers. However, supplier selection problems are complex because many criteria have to be taken into account and, in general, some criteria cannot be considered conclusively. In addition, there will always be fluctuations in supplier performance and unknown information in the decisions to be made. Hybrid multi-criteria decision making methods were used in this study. Firstly, literature and sector based decision-making criteria were determined for supplier selection. The weights were determined using the fuzzy analytic hierarchy process (Fuzzy AHP). A fuzzy multipurpose optimization model based on ratio analysis (fuzzy MOORA) was then applied to assess the overall performance of the supplier. The results show that this model can effectively perform the selection of suppliers with the appropriate criteria.
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