İTİBAR RİSKİ VE FİRMA DEĞERİ İLİŞKİSİ: BİST’TE AMPİRİK BİR UYGULAMA

Bu çalışmada, 2007-2017 dönemi arasında Borsa İstanbul'da işlem gören bankalarda meydana gelen operasyonel kayıp olaylarının itibar riskine neden olup olmadığı incelenmiştir. Bu araştırmada olay çalışması yöntemi ve tek örneklem t testi analizi kullanılmıştır. Olay çalışması yöntemi ile 3 günlük ve 21 günlük olay penceresinde operasyonel kayıp duyurularının itibar riskine etkisi araştırılmış ve sonuç olarak sadece kayıp duyurularının yapıldığı gün (olay günü) negatif anormal getiriler tespit edilmiştir. Olay gününden uzaklaşıldıkça duyuruların etkisinin kaybolduğu gözlemlenmiştir.

Relationship Between Reputation Risk and Firm Value: An Empirical Application on BİST

In this study, it was investigated whether the operational loss incidents that occurred in banks traded in Borsa Istanbul between 2007 and 2017 cause reputational risk. In this research, case study method and single sample t test analysis were used. The effect of operational loss announcements on reputation risk was investigated via event study method in terms of events for 3 and 21 days and as a result, negative abnormal yields were determined only on the day the announcement loss were made (event day). It was observed that the announcements lost their effects as long as it was moved away from the event day.

Keywords:

Reputation Risk, Operational Risk Firm Value, Event Study,

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