Bankacılık ve Finans Bölümü YayınKoleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/400

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Citation - WoS: 15
Citation - Scopus: 16
An Empirical Examination Of The Generalized Fisher Effect Using Cross-Sectional Correlation Robust Tests For Panel Cointegration
(Elsevier Science Bv, 2015) Omay, Tolga; Omay, Tolga; Yuksel, Asli; Yüksel, Aslı; Yuksel, Aydin; 19320; Çankaya Meslek Yüksekokulu; İşletme
This study examines the generalized Fisher hypothesis as applied to common stocks by using the recently proposed second generation panel cointegration tests. Unlike their predecessors, these new tests assume the existence of cross-section dependence in the data. For the sample analyzed, we report that these new tests, but not their predecessors, provide strong support for the existence of cointegration between stock and goods prices. Moreover, further analysis cannot reject the hypothesis that the cointegration relation is linear. Finally, our Fisher coefficient estimates are in the range between 0.68 and 1.27 and give support to the generalized Fisher hypothesis. (C) 2014 Elsevier B.V. All rights reserved.
Citation - WoS: 5
Citation - Scopus: 6
Elliott wave principle and the corresponding fractional Brownian motion in stock markets: Evidence from Nikkei 225 index
(Pergamon-elsevier Science Ltd, 2016) Ilalan, Deniz; İlalan, Deniz; Bankacılık ve Finans
This paper examines one of the vital technical analysis indicators known as the Elliott wave principle. Since these waves have a fractal nature with patterns that are not exact, we first determine the dimension of them. Our second aim is to find a linkage between Elliott wave principle and fractional Brownian motion via comparing their Hausdorff dimensions. Thirdly, we consider the Nikkei 225 index during Japan asset price bubble, which is a perfect example of an Elliott wave. (C) 2016 Elsevier Ltd. All rights reserved.
Citation - WoS: 2
Citation - Scopus: 2
Market reaction to grouping equities in stock markets: An empirical analysis on Borsa Istanbul
(Elsevier, 2017) Yildiz, Yilmaz; Pirgaip, Burak; Karan, Mehmet Baha; Pirgaip, Burak; 252136; Bankacılık ve Finans
The main aim of this study is to investigate the market reaction to stock grouping announcements in Borsa Istanbul which requires stocks to be classified into groups "A ", "B" and "C" according to their market capitalization and floating rates. By utilizing event study analysis, our results suggest that grouping announcements have significant effect on stock prices and trading volume. The event day positive (negative) relationship between abnormal return and volume for the upgraded (downgraded) stocks supports the downward sloping demand curve hypothesis. Moreover, findings also suggest that stocks which are upgraded to Group A are exposed to more attention which is in line with the attention hypothesis. The reverse is valid for the downgraded firms. We find no evidence of price reversals and long-term symmetrical liquidity effect which lead us to reject price pressure and liquidity hypotheses. Finally, we reach controversial evidence for the information hypothesis. Copyright (c) 2017, Borsa Istanbul Anonim Sirketi. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NCND license
Citation - WoS: 51
Citation - Scopus: 55
Reexamining the PPP hypothesis: A nonlinear asymmetric heterogeneous panel unit root test
(Elsevier, 2014) Emirmahmutoglu, Furkan; Omay, Tolga; Omay, Tolga; 43754; Çankaya Meslek Yüksekokulu
In this study, we re-examine the PPP hypothesis in the light of the new developments in the unit root testing literature. The recent theoretical findings have pointed out that the real exchange rate series exhibit asymmetric nonlinear behavior. A unit root test applied to analyze the PPP hypothesis therefore, should also take into account this asymmetry inherent in the real exchange rate. Different unit root tests that consider the presence of these data features have been developed in the time series literature. However, a true attempt to test the PPP hypothesis should take a panel data approach. To this end, we propose a nonlinear heterogeneous panel unit root test where the alternative hypothesis allows for symmetric or asymmetric exponential smooth transition autoregressive nonlinearity and provide its finite sample properties. We apply our test to the real exchange rates of the 15 European Union countries against the US dollar. While the results of the linear and symmetric nonlinear heterogeneous panel unit root tests are against the PPP hypothesis, the asymmetric nonlinear heterogeneous panel test that we propose gives support for the PPP hypothesis as expected. Therefore, the conclusions drawn from the linear panel unit root tests or the nonlinear panel unit root tests that do not take asymmetry into account might be misleading. (C) 2014 Elsevier B.V. All rights reserved.
Citation - WoS: 3
Citation - Scopus: 5
The Stock and CDS Market Consequences of Political Uncertainty: The Arab Spring
(Routledge Journals, Taylor & Francis Ltd, 2022) Tanyeri, Basak; Usul, Naime; Savaser, Tanseli; Usul, Naime; 298519; Çankaya Meslek Yüksekokulu
We investigate how political unrest affects asset prices in the context of the Arab Spring. Abnormal returns in the major stock-market indices of Arab Spring countries average -1.1% on key days of Arab Spring and abnormal changes in credit default spreads average 1.4%. There is significant reaction to region wide as well as local protests indicating a spillover with protests in neighboring countries affecting investors' perception of local political instability and the pricing of assets. Once protests start locally, investors start paying more attention to what is happening at home than in the region. The significant stock market reaction to region-wide protests in Arab Spring countries indicates a spill-over where investors price an increase in the probability of political turmoil in one country when there are protests in neighboring countries. The decline in stock market indices coupled with the increase in credit default spreads indicates that investors anticipate and ex-ante price how current political uncertainty will affect firm value.

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