Yazar "Polat, Ali Yavuz" için listeleme
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Adjustment speed of debt maturity: Evidence from financial crises in East Asia
Hasan Tekin; Ali Yavuz Polat (Bank Indonesia Institute, 2021)We investigate the change in adjustment speed of debt maturity for East Asian firms between 1990 and 2017 by including two exogenous shocks: the Asian Financial Crisis 1997-1998 (AFC) and the Global Financial Crisis 2007-2009 ... -
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. ... -
Assessing the impact of Covid-19 pandemic in Turkey with a novel economic uncertainty index
Mugaloglu, Erhan; Polat, Ali Yavuz; Tekin, Hasan; Kilic, Edanur (EMERALD GROUP PUBLISHING LTDHOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND, 2021)Purpose This study aims to measure economic uncertainty in Turkey by a novel economic uncertainty index (EUI) employing principal component analysis (PCA). We assess the impact of Covid-19 pandemic in Turkey with our ... -
Bitcoin-specific fear sentiment matters in the COVID-19 outbreak
Polat, Ali Yavuz; Aysan, Ahmet Faruk; Tekin, Hasan; Tunali, Ahmet Semih (EMERALD GROUP PUBLISHING LTDHOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND, 2021)Purpose This study aims to investigate the effect of fear sentiment with a novel data set on Bitcoin's (BTC) return, volatility and transaction volume. The authors divide the sample into two subperiods to capture the ... -
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 ... -
THE GLOBAL FINANCIAL CRISIS AND CAPITAL STRUCTURE DECISIONS OF TURKISH SMEs: A REVIEW
TEKİN, Hasan; Polat, Ali Yavuz (DergiPark, International Journal of Management Economics and Business, 2020)Due to the arising uncertainties with the global financial crisis, capital structure decisions became crucial for Turkish firms, especially small and medium-sized (SMEs) firms. Since SMEs face higher information asymmetry, ... -
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 leverage a substitute or outcome for governance? Evidence from financial crises
Tekin, Hasan; Polat, Ali Yavuz (EMERALD GROUP PUBLISHING LTDHOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND, 2021)Purpose The authors investigate the impact of governance on the leverage of East Asian firms in the financial crisis context, in order to understand the puzzle whether debt acts as a substitute for governance or an outcome ... -
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. ... -
Rule of law, international trade, and corporate financing decisions in Europe: Evidence from the covid-19 pandemic
Polat, Ali Yavuz (IGI Global, 2022)This chapter investigates whether the institutional environment that the firms operate has an impact on their leverage choice. Namely, rule of law is used as an institutional variable. Considering that better implementation ... -
SUBPRIME MORTGAGES AND LENDING BUBBLES
Polat, Ali Yavuz (Bank Indonesia Institute, 2018)We consider a model with two types of households: the poor with no initial endowment and the rich with positive endowment, and two types of assets: properties in a poor area and properties in a rich area. In the model, ... -
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 ...
