Yazar "0000-0001-5647-5310" için Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed listeleme
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The Ascent of Geopolitics: Scientometric Analysis and Ramifications of Geopolitical Risk
Polat, Ali Yavuz; Aysan, Ahmet Faru; Tekin, Hasan; Tunalı, Ahmet Semih (AYLOR & FRANCIS LTD, 2022)In recent years, geopolitical risk (GPR) has been a crucial factor in investment decisions and stock markets. Therefore, we explore the research on the GPR by employing bibliometric and scientometric analytical techniques. ... -
Covid-19 Salgınının Ekonomik Etkisinin Sektörel Bazlı ve Genel Belirsizlik Endeksleriyle İncelenmesi ve Sektörel Acil Önlem Önerileri
Polat, Ali Yavuz; Muğaloğlu, Erhan; Doğan, Eyüp; Tekin, Hasan (TUBİTAK, 2020)Koronavirüs (Covid-19) salgını dünyada modern zamanlarda görülen en büyük sağlık krizlerinden birisidir. Ancak salgın sadece bir sağlık krizi olarak kalmamış tüm dünyayı etkileyen küresel, ekonomik ve sosyal krize ... -
Do market differences matter on dividend policy?
Tekin, Hasan; Polat, Ali Yavuz (ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)We investigate the dividend policies of firms in the United Kingdom to understand whether firms in different markets use dividends as a signaling or disciplining device. The sample consists of 1247 firms from the highly ... -
Investor bias, risk and price volatility
Polat, Ali Yavuz (Emerald Publishing, 2023)Purpose: This study proposes a framework based on salience theory and shows that focusing on one type of risk (idiosyncratic or systemic) can explain overpricing of securities ex ante, and resales at low prices during ... -
Is saving vital? Evidence from the financial crisis
Tekin, Hasan; Polat, Ali Yavuz (UNIV OVIEDO, CAMPUS HUMANIDADES, EDIFICIO SERVICIOS,, OVIEDO, ASTURIAS 33011, SPAIN, 2020)We use a sample of 8,561 firm-years from the highly regulated Main Market (MAIN) and relatively unregulated Alternative Investment Market (AIM) in the United Kingdom to analyse the impact of financial restrictions on optimal ... -
KÜRESEL FİNANSAL KRİZİN ARAŞTIRMA-GELİŞTİRME HARCAMALARI AYARLAMA HIZI ÜZERİNDEKİ ETKİSİ
Tekin, Hasan; Polat, Ali Yavuz (T.C. SANAYİ VE TEKNOLOJİ BAKANLIĞI STRATEJİK ARAŞTIRMALAR VE VERİMLİLİK GENEL MÜDÜRLÜĞÜ, 2021)Amaç: Verimlilik artışını uzun vadede etkileyen Araştırma-Geliştirme (Ar-Ge) yatırımları hem şirketler hem de ülkeler düzeyinde son derece önemlidir. Küresel Finansal Kriz gibi ekonomik belirsizliğin arttığı bir dönemde ... -
Oil Price Shocks During the COVID-19 Pandemic: Evidence From United Kingdom Energy Stocks
Mugaloglu, Erhan; Polat, Ali Yavuz; Tekin, Hasan; Dogan, Abdullah (Asia-Pacific Applied Economics Association, 2021)We investigate the dynamic relationship between global oil prices, the stock market, and oil and gas stock (FTSE-OG) returns in the UK through a structural vector autoregressive (VAR) framework during the COVID-19 pandemic. ... -
Whether and when did bitcoin sentiment matter for investors? Before and during the COVID-19 pandemic
Aysan, Ahmet Faruk; Muğaloğlu, Erhan; Polat, Ali Yavuz; Tekin, Hasan (SPRINGER, 2023)Using a wavelet coherence approach, this study investigates the relationship between Bitcoin return and Bitcoin-specifc sentiment from January 1, 2016 to June 30, 2021, covering the COVID-19 pandemic period. The results ...