Ayben Koy

Fenerbahçe University — Turkey

Economics, Econometrics and Finance · Social Sciences

9h-index245citations75works5.12yr avg
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Research Topics

Market Dynamics and Volatility(35), Monetary Policy and Economic Impact(16), Financial Markets and Investment Strategies(13), Complex Systems and Time Series Analysis(10), Stock Market Forecasting Methods(8)

Publications75 total

Google trend index as an investor sentiment proxy in cryptomarket: nonlinear relationships with cryptomarket and predicting bitcoin returns with machine learning approach
Central European Journal of Operations Research·2025
Electricity Price Prediction using Artificial Neural Network Models: A New and Comparative Analysis with Diverse Industry Production Indices
Computational Economics·2025
Google Trend Endeksi’nin Yatırımcının Alım Satım Kararları Üzerindeki Etkisi: Otomotiv Sektörü Üzerine Uygulama
Ekonomi ve Finansal Araştırmalar Dergisi·2025Open Access
BUSINESS LEADERSHIP OF IT COMPANIES: IMPACT ON EMPLOYMENT AND SOCIO-ECONOMIC DEVELOPMENT OF THE COUNTRY
Socio-economic relations in the digital society·2024· 1 citedOpen Access
Energy-related uncertainty shocks and inflation dynamics in the U.S: A multivariate quantile-on-quantile regression approach
Structural Change and Economic Dynamics·2024· 30 cited
Intraday regime switching volatility dynamics of bitcoin liquidity
Multidisciplinary Business Review·2024Open Access
The impact of the day of the week on the financial market: an empirical investigation on cryptocurrencies
International Journal of Quality & Reliability Management·2024· 1 cited
Is sustainable energy consumption, technological advancement and urbanization fast addressing south Asia’s green energy expansion deficits?
Environment Development and Sustainability·2024· 9 citedOpen Access
PREDICTING BITCOIN PRICE WITH THE LSTMA MODEL
Pressacademia·2023Open Access
The Intraday High-Frequency Trading with Different Data Ranges: A Comparative Study with Artificial Neural Network and Vector Autoregressive Models
Archives of Advanced Engineering Science·2023· 28 citedOpen Access
Predicting Stock Market Index and Credit Default Swap Spreads Using Artificial Intelligence and Determining Nonlinear Relations
Archives of Advanced Engineering Science·2023· 19 citedOpen Access
NPL ve Makroekonomik Göstergeler Arasındaki İlişkinin MTAR Modeli ile Eşbütünleşme ve Nedensellik Analizi
Ekonomi ve Finansal Araştırmalar Dergisi·2023Open Access
The impact of unproved reserve news on the energy stock volatility: an empirical investigation on Turkey
Review of Behavioral Finance·2023Open Access
The Role of Technical Indicators in the Intraday Prediction of Stock Markets: Artificial Neural Network Models for Borsa Istanbul
Scientia Iranica·2023· 9 citedOpen Access
DAVRANIŞSAL FİNANS EĞİLİMLERİ İLE KİTLE FONLAMA YATIRIM KARARLARI VE TEKRAR YATIRIM YAPMA NİYETİ ARASINDAKİ İLİŞKİNİN İNCELENMESİ: AMPİRİK BİR UYGULAMA
Finansal Araştırmalar ve Çalışmalar Dergisi·2023· 2 citedOpen Access
İlk Halka Arzların BİST100 Endeksi Volatilitesine Etkisi: Covid-19 Pandemisi Dönemi
Ekonomi Politika ve Finans Arastirmalari Dergisi·2022· 2 citedOpen Access
Initial Public Offerings Effect on BİST100 Index: Covid-19 Period
DergiPark (Istanbul University)·2022Open Access
ABD Borsalarında Gün İçi Doğrusal Olmayan Asimetrik İlişkinin Momentum Eşik Değerli Modellerle Analizi
Maliye Finans Yazıları·2022· 2 citedOpen Access
Regime Switching Mechanism during Energy Futures' Price Bubbles
International Journal of Energy Economics and Policy·2022· 1 citedOpen Access
The effect of cryptocurrencies in portfolio management
Pressacademia·2021Open Access
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Frequent Co-authors

Hicabi Ersoy(4), Güldenur Çetin(4), Andaç Batur Çolak(3), Murat Akkaya(3), Tomiwa Sunday Adebayo(2), Mustafa YAMAN(2), Sefa Mete(2), İhsan Ersan(2), Ojonugwa Usman(1), Oktay Ozkan(1), Hakan Mentes(1), Bright Akwasi Gyamfi(1), Divine Q. Agozie(1), Festus Victor Bekun(1), Süleyman Serdar Karaca(1), Samiye Ekim Dertli(1), Hasan Hüseyin Yıldırım(1), Cihat Köksal(1), Kadra Yusuf Hersi(1), Seçil BAYRAKTAR YETİM(1)