Bankacılık ve Finans Bölümü

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Citation - WoS: 2
Citation - Scopus: 2
An Alternative Mean Reversion Test for Interest Rates
(Central Bank Republic Turkey, 2018) Ozel, Ozgur; Ilalan, Deniz
A number of empirical studies assert that interest rates are governed by unit root processes rejecting any form of reversion to a long term mean by resorting to certain tests, among which the Augmented Dickey Fuller (ADF) is the most widely used one. In this study, we propose an alternative testing methodology that can be applied along with ADF test, in the sense that there are times where it can capture stationarity when the other fails to do so. Moreover, our test has more power than ADF test. As an application to real-data, we consider 10-year US and Turkish T-bond rates. (C) 2017 Central Bank of The Republic of Turkey. Production and hosting by Elsevier B.V.
Asymmetric Smooth Transition in Cds Spreads: Evidence From Latvia
(Allied Business Academies, 2019) Akdoğan, E.C.; Akdoğan, Ece Ceylan; Bankacılık ve Finans
This paper investigates the predictability of CDS premiums and thus addresses weak form informational efficiency of CDS markets through examining the statistical properties of Latvian CDS spreads in-between 01:2006-08:2017 by concentrating on stationarity issues. The findings for the Augmented Dickey Fuller test fail to reject the presence of unit root indicating that the CDS market is weak form efficient while nonlinear tests of Kapatenios, Snell and Shin, and Sollis claim the opposite, demonstrating a smooth transition in general, and asymmetric smooth transition in particular. Additionally, the results of Perron and Zivot-Andrews tests identify no structural break as well for robustness. These results underline the necessity of accounting for nonlinearities in CDS premiums to grasp the predictability dynamics better. © 2019, Academy of Accounting and Financial Studies Journal.
Citation - Scopus: 1
Economic Exposure of Emerging Market Firms
(National Academy of Management, 2015) Karadagli, E.C.; Akdoğan, Ece Ceylan; Bankacılık ve Finans
Although foreign exchange risk inherits more severe exposures for emerging market firms, past empirical research addressing foreign exchange exposure is mainly concentrated on firms operating in developed economies. This paper examines the impact of exchange rate fluctuations on firm value at an emerging market through focusing on economic exposure of Turkish listed firms. The findings indicate that depreciation of Turkish lira against the euro, the US dollar and the basket currency significantly deteriorates firm value in a current month while significantly enhances firm value during the next month. When the overall impact of Turkish lira depreciation on the value of Turkish companies is considered, it is observed that the weakening of the home currency has a positive effect on firm’s value. © Ece C. Karadagli, 2015.
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
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: 22
Citation - Scopus: 26
An Empirical Analysis of Household Education Expenditures in Turkey
(Pergamon-elsevier Science Ltd, 2016) Cilasun, Seyit Mumin; Acar, Elif Oznur; Gunalp, Burak
Using Turkish Household Budget Surveys from 2003, 2007 and 2012, this paper investigates the determinants of household education expenditures within an Engel curve framework. In particular, we estimate Tobit regressions of real educational expenditures by income groups using a number of household characteristics (i.e. rural residence, employment status, age, educational attainment of the household head, household size, share of female students and primary school students in the household, and total number of students in the household) to examine if and to what extent the determinants of educational expenditures differ by income groups; income elasticities of educational spending evolves over time; and children from middle-class and poor families can benefit enough from educational opportunities. The estimated expenditure elasticities have lower values for the top- and the bottom income quartiles while they have larger values for the middle-income quartiles. The results also show that for all income groups the expenditure elasticity of education increases over time, indicating that Turkish households allocates greater share of their budgets to education expenditures. (C) 2016 Elsevier Ltd. All rights reserved.
Citation - WoS: 16
Citation - Scopus: 18
An Empirical Examination of the Generalized Fisher Effect Using Cross-Sectional Correlation Robust Tests for Panel Cointegration
(Elsevier Science Bv, 2015) Yuksel, Aydin; Omay, Tolga; Yuksel, Asli
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: 11
Citation - Scopus: 12
Energy Consumption and Growth: New Evidence From a Non-Linear Panel and a Sample of Developing Countries
(World Scientific Publ Co Pte Ltd, 2015) Apergis, Nicholas; Ozcelebi, Hulya; Omay, Tolga
This paper investigates the relationship between economic growth and energy consumption through non-linear causality tests. Eight developing countries from Europe and Central Asia spanning the period 1993 to 2008 are selected for the purpose of panel empirical analysis. Panel unit root and panel cointegration tests with and without considering cross section dependency (CD) problems are implemented. Next, linear panel cointegration tests are employed and, finally, a two-regime Dynamic Panel Smooth Transition Vector Error Correction (PSTRVEC) model is estimated for testing the presence of non-linear short-and long-run causality. To this end, a new estimator, called the Dynamic Non-linear Pooled Common Correlated Effect Estimator (DNPCCEE) is proposed. The empirical findings indicate that short and long-run causalities are regime-dependent.
Citation - WoS: 12
Citation - Scopus: 16
Exchange Rate Risk and International Trade: the Role of Third Country Effect
(Elsevier Science Sa, 2018) Tunc, Cengiz; Solakoglu, M. Nihat; Babuscu, Senol; Hazar, Adalet
Using the recently launched Exporter Dynamics Database of the World Bank, this paper empirically investigates the role of external exchange rate risk (third-country effect) on trade flows between countries. We find a strong positive influence of external exchange rate risk on exports to a specific destination. However, the effect is more observable in advanced destination countries, countries with low bilateral exchange rate volatility in comparison to external exchange rate volatility, and countries in which export is concentrated among a small number of firms. (C)2018 Elsevier B.V. All rights reserved.
Citation - WoS: 6
Citation - Scopus: 5
Exchange Rate Volatility and Trade: External Exchange Rate Volatility Matters
(World Scientific Publ Co Pte Ltd, 2020) Babuscu, Senol; Hazar, Adalet; Solakoglu, M. Nihat; Tunc, Cengiz
We investigate the role of external exchange rate volatility in export in addition to the effect of bilateral exchange rate volatility using country-, sector-, and destination-specific detailed export data of the World Bank Exporter Dynamics Database. The results show that while the bilateral exchange rate volatility has a depressing effect on export, the external exchange rate volatility generates trade-promoting effect on export. However, the magnitude of the effect depends on trade intensity between countries. Furthermore, while the role of external exchange rate volatility diminished after the Global Financial Crisis, the effect of its volatility has become larger. Finally, external exchange rate volatility has a larger trade-promoting effect on export in the presence of high volatilities than the effect in the presence of low volatilities.
Citation - WoS: 92
Citation - Scopus: 89
Fractional Frequency Flexible Fourier Form To Approximate Smooth Breaks in Unit Root Testing
(Elsevier Science Sa, 2015) Omay, Tolga
In this study, a Fractional Frequency Flexible Fourier Form DF-type unit root test is proposed. The small sample properties of the proposed test are found to be better than that of the integer frequency counterpart. (C) 2015 Elsevier B.V. All rights reserved.
Citation - WoS: 2
Citation - Scopus: 4
How Globalization Affects the Operational Efficiency of Emerging Market Firms?: a Comparative Analysis on Turkish Smes
(Univ Oviedo, 2018) Akdogan, Ece Ceylan
This paper examines the impact of globalization on the operational efficiency of emerging market firms by concentrating on the financial outcomes of a firm's main operations through focusing on operating income and cash conversion cycle as well as on their possible causes in an emerging market, Turkey. The findings indicate that globalization significantly deteriorates the operating income and lengthens the cash conversion cycle of Turkish firms. Besides, globalization is found to increase sales of SMEs and decrease sales of large companies significantly and the impact on operating income of large companies is observed to be stronger. Globalization is also found to lead a softening in Turkish firm's terms of sales and enable Turkish SMEs to benefit from better terms of purchase.
Citation - Scopus: 1
How Stock Markets Become Desensitized To Terror
(Emerald Group Publishing Ltd., 2017) Ilalan, D.
Purpose-A widely accepted belief indicates that terror activities have negative impact on stock markets. Contrary to numerous empirical studies, the purpose of this paper is to consider this issue from another point of view in the sense that markets can become desensitized to terror. Design/methodology/approach-Here, instead of directly analyzing the existing data, the stochastic nature of the events is taken into consideration. Findings-The author compares three countries and found out that the correlation between terror and stock markets is almost nil when terror events become a commonplace. Originality/value-This paper applies mean reverting stochastic processes to terror incidents and brings out interesting results. © Emerald Publishing Limited.
Citation - WoS: 2
Citation - Scopus: 3
Loan-To Policy: Evidence From Turkish Dual Banking System
(Emerald Group Publishing Ltd, 2018) Hepsen, Ali; Pirgaip, Burak
Purpose-This paper aims to answer how effective the loan-to-value (LTV) regulation has been since 2011 for conventional and Islamic (participation) banks in Turkey in terms of curbing mortgage loan growth and delinquency[1]. Design/methodology/approach-The authors first use unit root tests and tests of difference in loan and property price data in pre-LTV and post-LTV period. Second, the authors follow Chow test and ordinary least squares regression analyses to test for a structural break when sensitivity of mortgage loan and delinquency growth changes to property price changes considered. Findings-The authors find that two periods are statistically different, while the significance level is lower for Islamic banks. Moreover, loan growth has become less responsive to property price increases; delinquency sensitivity to property price changes has significantly increased in the post-LTV period for conventional banks, while this is not the case for Islamic (participation) banks. Originality/value-This paper not only increases empirical evidence regarding the effectiveness of LTV ratio policy but also fills the gap in the literature by providing a comparison between conventional banks and Islamic (participation) banks.
Citation - WoS: 11
Citation - Scopus: 10
Managing Working Capital Efficiency in Turkish Agribusinesses and the Impact of Globalization: Insights From an Emerging Market
(Wageningen Academic Publishers, 2019) Dinc, Dilek Temiz; Akdogan, Ece C.
The efficiency of working capital is a major determinant of firm profitability. So, the grasp of working capital dynamics is extremely important for managers, but also for policy makers, since inefficient working capital management is an important source of industrial sickness. This study focuses on the profitability impacts of working capital policies of Turkish agribusinesses, and aims to investigate the potential effects of globalization on these interrelated relationships. The findings obtained from pooled panel analyses demonstrate that Turkish agribusinesses can enhance their profitability and value by adopting a conservative working capital policy through lengthening the cash conversion cycle up to an optimal level. Besides, globalization is found to deteriorate their efficiency and profitability where economic globalization seems to have the highest impact raising questions on the effectiveness of Turkish agribusinesses in coping with competition. Thus, both the managers and the policy makers should concern with the competitiveness impacts of globalization.
Citation - WoS: 2
Citation - Scopus: 2
Market Reaction To Grouping Equities in Stock Markets: an Empirical Analysis on Borsa Istanbul
(Elsevier, 2017) Karan, Mehmet Baha; Pirgaip, Burak; Yildiz, Yilmaz
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 - Scopus: 2
A Nonlinear Analysis of Weak Form Efficiency of Stock Index Futures Markets in Cce Emerging Economies
(2012) Karadagli, E.C.; Donmez, M.G.
Futures markets, through carrying considerable impact on the spot market, serving such functions as price discovery and risk reduction for all market participants, and providing beneficial effects on the economic growth process especially in emerging countries, appear to be a vital part of a well-functioning economy. Accordingly, this paper examines weak form futures market efficiency of five CEE Emerging Economies. For this purpose, besides the traditional unit root tests, to account for nonlinearities in financial data, we employ nonlinear unit root tests along with their panel extensions. The results suggest that although the examined markets are efficient in linear sense, inefficiencies prevail when we account for nonlinearities. These findings imply that the examined countries, especially Poland and Turkey, need to take precautions to overcome the obstacles in their prevailing market structures, especially inherited in the sources of nonlinearity in the financial data, and to ensure a more efficient futures markets. © EuroJournals Publishing, Inc. 2012.
Overview of Financial Reporting in the Airline Industry
(Emerald Group Publishing Ltd, 2022) Ozturk, Can
This chapter focuses on the diversity of financial reporting frameworks in the airline industry considering past and present. While diversity of financial reporting frameworks existed in the past, currently, the majority of listed and non-listed airlines, whose financial statements are publicly available, are inclined to adopt International Financial Reporting Standards (IFRS), leading toward uniformity in financial reporting frameworks because their country of incorporation or the stock exchange where they are listed either require or permit them to do so. Airlines operating in the United States prepare their financial statements under United States Generally Accepted Accounting Principles and some of Asian-Pacific countries still use their own national accounting standards in financial reporting. In addition, this research points out that the primary determinant of IFRS adoption in the airline industry is the fact that the majority of airlines are listed in national or foreign stock exchanges where IFRS adoption is required, but there are some company-specific determinants for listed and non-listed IFRS adopting airlines. Finally, this chapter also sets forth that there are jurisdictional versions of IFRS in the global context from the perspective of financial statements of airlines leading to some obstacles in understanding the financial reporting framework.
Perspectives on the Preparation and Presentation of a Statement of Cash Flows Under Ias 7: an Historical Approach
(Springer Nature, 2023) Baker, C.R.; Öztürk, C.
This chapter provides perspectives on the preparation and presentation of the statement of cash flows under IAS 7 of the International Financial Reporting Standards by adopting an historical approach. It focuses on the transformation attempts of the statement of cash flows along with the influence of such attempts on the statement of financial position. It analyzes and discusses the proposed changes on this statement offered through (1) the Discussion Paper on preliminary views on Financial Statement Presentation that was published by the International Accounting Standards Board (IASB) in 2008 right after the compliance of IAS 1 (2007) Presentation of Financial Statements to other comprehensive income items, (2) the staff draft of Exposure Draft IFRS X Financial Statement Presentation that was issued by the staff of the IASB in 2010, (3) Exposure Draft ED/2012/1 Annual Improvements to IFRSs 2010–2012 Cycle that was published by the IASB in 2012, (4) staff Discussion Paper of the United Kingdom’s Financial Reporting Council that was published in 2016, and (5) the Exposure Draft ED/2019/7 General Presentation and Disclosure that was issued by the IASB in 2019 toward the objective of improved financial communication. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Citation - Scopus: 8
A Poisson Process With Random Intensity for Modeling Financial Stability
(Ediciones Doyma, S.L., 2016) Ilalan, D.
Stock market crashes are hazardous for financial stability and usually modeled via Poisson processes having a predetermined fixed intensity. This study uses a more general framework by allowing the intensity to be random in order to model rare events called the “unpredictable unknowns”. Three stock indices, namely Japan Nikkei 225, US Dow Jones Industrial Average and Turkish BIST 100 are analyzed. Simulation results indicate that in stable markets, we encounter fewer unpredictable unknowns compared to unstable ones. However, it is also shown that stable markets are more prone to severe financial crises. © 2015 Asociación Española de Finanzas
Citation - Scopus: 2
Profitability Effects of Cash Conversion Cycle: Evidence From Turkish Companies
(National Academy of Management, 2013) Karadagli, E.
This paper examines the impact of cash conversion cycle and its single components, specifically accounts collection period, inventory turnover in days and accounts payable period, on firm profitability as measured by operating income and stock market return by using pooled panel analysis for the period of 2001-2010. Besides, the possible effects of group affiliation on the impact of CCC and its components on firm profitability are also investigated. The findings suggest that shortening of CCC and its single components, including accounts payable period, improve firm profitability in terms of both accounting and market measures of performance. The findings also indicate that both the affiliated and the unaffiliated firms can enhance firm performance in terms of both performance measures through shortening their CCCs, this effect is stronger for unaffiliated firms and hence working capital management seems to be more important for them. © Ece Karadagli, 2013.

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