Varlı, Yusuf
Yükleniyor...
Araştırma projeleri
Organizasyon Birimleri
Yönetim Bilimleri Fakültesi, İktisat Bölümü
İktisat Bölümü, başta Türkiye ve çevre ülkeler olmak üzere küresel ekonomileri anlayan, var olan sorunları analiz ederken, iktisadi kuramları ve kavramları yetkin ve özgün bir şekilde kullanma becerisine sahip bireyler yetiştirmeyi amaçlamaktadır.
Adı Soyadı
Yusuf Varlı
İlgi Alanları
İş ekonomisi, Fizik, Din
Kurumdaki Durumu
Pasif Personel
3 sonuçlar
Arama Sonuçları
Listeleniyor 1 - 3 / 3
Yayın An empirical investigation of the determinants of market efficiency in Borsa Istanbul(Springer, 2021) Şahin, Ebubekir Sıddık; Varlı, Yusuf; Yönetim Bilimleri Fakültesi, İktisat BölümüFollowing the last global financial crisis, efficiencies of stock markets have come to sight as a novel area of research. The question of what factors shape the efficiency of the stock market is naturally always of a curiosity in theory and practice. In line with the framework of this curiosity, this study examines the main determinants that play a crucial role in the efficiency of a certain stock market, Borsa Istanbul. Our study contributes to the literature by using five years and daily data belonging to both individual and institutional investors. We here aim to specify the ten determinants of market efficiency which are categorized under investor-based, market-based and country-based determinants. According to the three different regressions and VAR analysis, the results indicate the strong relationship between the market efficiency and the specified determinants such as turnover, market volatility, the share of foreign investors and interest rate.Yayın Evaluation of market efficiency and trading behavior of investors: Evidence from Borsa Istanbul(Marmara Üniversitesi, 2018) Varlı, Yusuf; Varlı, Yusuf; Yönetim Bilimleri Fakültesi, İktisat BölümüAfter the financial crisis of 2007-08, debates on structures and characteristics of financial markets have become the subject of much concern in both industry and academia. One of the most debated issues related to financial markets is whether they are efficient or not. With an intent to enter into discussions, this paper evaluates the market efficiency by using individual and institutional trade data from a specific stock exchange, namely Borsa Istanbul. To do so, we first form several measures of market efficiency through daily investor data covering five years. By using these measures, we show that there is a negative relationship between market efficiency and turnover. That is, the more efficient the market, the lower the turnover. This result contributes to the debate of irrationality of investor behavior. The data also suggests that the efficiency in Borsa Istanbul has been increasing after the crisis, showing that the effect of the crisis has been vanishing as time passes.Yayın Who are the market beaters: lucky investors, insiders or who else?(Uludağ Üniversitesi, 2018) Varlı, Yusuf; Yönetim Bilimleri Fakültesi, İktisat Bölümü; Yönetim Bilimleri Fakültesi, İktisat BölümüConditions of beating the market is always top of the interests of investors throughout the history. In this study we aim to find who beats the market using a special trade and portfolio data from a stock exchange namely Borsa İstanbul. Instead of market data, investor based data used in this paper provides us to make stronger analyses. We initially find that 87% of individual and 92% of institutional investors get returns in a random way. Then the rest of investors are investigated to determine who consistently beats the market and gets abnormal returns. And we mainly find that the market beating gets longer with increasing portfolio size and diversification, while it gets shorter with increasing turnover. Additionally, longer beating length means higher shares of women, old adults, funds and foreigner. Furthermore, we analyze the return performance of investors in our study and show that the picture becomes reversed compared to beating length criteria. Finally, the insiders are compared with other investors to understand whether the market is efficient in the strong form or not. And the findings indicate that the insiders cannot be specifically differentiated from other investors. Therefore, we end up with the evidence that there is strong form efficiency in Borsa İstanbul.
