The Covid-19 outbreak, which started in Wuhan, China at the end of 2019, turned into a pandemic in March 2020 and affected the whole world. It is estimated that this global epidemic will cause a contraction in all world economies in 2020. Against the epidemic, the central banks of all developed and developing countries have changed their interest rates, providing liquidity support to the markets, and have begun to implement expanding monetary and fiscal policies to support credit conditions. In this context, by the Central Bank in Turkey, March 17, 2020 the Monetary Policy Committee reductions policy interest rate at meetings and in addition to this decision March 17, March 31 and April 17, 2020 date in the Covid-19 outbreak of the package of measures taken to limit the economic and financial impact has been announced. In this study, global economic indicators of the Covid-19 epidemic and its effects on the banking and financial sector in Turkey were analyzed using a comprehensive field researh and reports and Industry data from expert institutions. Purpose: Covid -19 is to investigate the effects of the economic conditions arising in the pandemic process on the banking and financial sector in Turkey along with global indicators.Method: It is a study within the Covid-19 pandemic process in which the outputs of qualitative and quantitative sectoral data obtained from national and international expert organizations operating in the banking and finance sector are processed in Microsoft Office programs, accompanied by a literature review.Findings: Economic contraction will occur in the entire world economy and in our country, and the central bank has provided liquidity support to the market in order to limit the impact of the contraction in Turkey. Originality:The Covid-19 pandemic is a health and economic crisis that has far more comprehensive effects, as all countries in the world are caught unprepared and, unlike the previous economic crises, it is directly aimed at human health. The effects of the epidemic and the crisis it caused continue as of the period of the study and it is uncertain how long it will last. Therefore, it is necessary to wait for the end of the epidemic in order to determine the final results in the ongoing process. In this study, the effects of the epidemic on the banking and finance sector in Turkey and the reactions of the capital markets against it were determined, examined and evaluated. In this respect, the study aims to be a source guide and archive for the economic policies to be implemented in the crisis periods that may arise from the epidemic in the future.

Bu çalışmanın amacı; Türkiye’de faaliyette bulunan Borsa İstanbul (BİST) Kurumsal Yönetim Endeksi (XKURY) içerisinde yer alan halka açık şirketlerin hisse senedi değerleri üzerinde kurumsal yönetim derecelendirme notlarının etkisini analiz etmektir. Bu kapsamda 2016-2020 dönemlerinde Kurumsal Yönetim Endeksinin içerisinde yer alan firmaların, derecelendirme notları belirlenmiştir. Araştırma yöntemi olarak Eşleştirilmiş Bağımlı Örneklem t-Testi’nin kullanıldığı çalışmada derecelendirme notların açıklandıkları tarihlerden otuz gün önce ve otuz gün sonra zaman aralığında kalan tarihlerde oluşan hisse değerlerinin farkları incelenmiştir. Elde edilen sonuçlara göre 2016, 2017 ve 2019 döneminde kurumsal yönetim ilkelerini uygulayan şirketlerin hisse senedi değerleri üzerinde istatistiki olarak anlamlı bir etki olduğu görülürken, 2018 ve 2020 yıllarında makro düzeyde meydana gelen sistematik riskler nedeniyle bu yıllar için istatistiki bakımdan anlamlı bir etki görülememiştir.

In this study, it is aimed to determine the factors affecting market dominance in the banking sector of 37 banks operating in the Turkish banking sector between 1997-2020. After the literature review on the method and the subject, the data set of 37 banks operating in the 1997-2020 period, obtained from the Banks Association of Turkey (TBB), was analyzed using panel data regression models. In the findings obtained as a result of the analysis, it has been determined that there are econometrically significant variables that affect the market dominance rate in the Turkish banking sector.