İktisadi ve İdari Bilimler Fakültesi

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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.
Citation - WoS: 3
Citation - Scopus: 5
A Comparative Civilizational Reading for the Middle East and Turkey's New Role in It
(Routledge Journals, Taylor & Francis Ltd, 2016) Atac, C. Akca
The 1990s witnessed a bloom of studies on the standard of civilization', which all aimed to explore the future of the rift between the East and the West. The Arab Spring and its implications for the primordial competition between the East and the West has once again required the revisiting of certain, rather more contemporary, theoretical aspects of the grand debate on civilization. This paper aims to introduce current arguments pertaining to the grand debate on civilization into the context of the Arab Spring. In doing so, it seeks to offer a comparative perspective of the quest for understanding the current situation in the Middle East with particular reference to the civilization discourse which is currently on the rise in Turkish politics. Turkey is among the actors in the Middle East seeking to assume leadership in order to establish peace in the region.
Citation - Scopus: 2
Copyright Protection by Robust Digital Image Watermarking in Unsecured Communication Channels
(Institute of Advanced Engineering and Science, 2017) Alasafi, L.; Göksu, T.; Albayati, A.
The transition from analog technologies to digital technologies has increased the ever-growing concern for protection and authentication of digital content and data. Owners of digital content of any type are seeking and exploring new technologies for the protection of copyrighted multimedia content. Multimedia protection has become an issue in recent years, and to deal with this issue, researchers are continuously searching for and exploring new effective and efficient technologies. This thesis study has been prepared in order to increase the invisibility and durability of invisible watermarking by using the multilayer Discrete Wavelet Transform (DWT) in the frequency plane and embedding two marks into an image for the purpose of authentication and copyright when digital content travels through an unsecured channel. A novel watermarking algorithm has been proposed based on five active positions and on using two marks. In addition to the extraction process, watermarking images will be subjected to a set of attack tests. The evaluation criteria have been the bases of assessing the value of SNR, PNSR, MAE and RMSE for both the watermarking images and the watermarking images after attacks, followed by the invisibility of the watermarking being measured before and after the attacks. Our lab results show high robustness and high quality images obtaining value for both SNR and PNSR. © 2017 Institute of Advanced Engineering and Science. All rights reserved.
Citation - Scopus: 6
Economic Growth - Inflation Nexus and Its Impact on the Development of the Automotive Industry: the Case of Turkey
(Inderscience Publishers, 2019) Gökmen, A.; Üstündağ, K.; Dinç, D.T.
Economic growth is essential for development and welfare of the citizens of a country. Economic development is an intact process involving potentially entire industries in a state. Also, economic growth is associated with macroeconomic indicators such as GDP, exports, imports, budget surplus or deficits, current account balance, interest and inflation rates. Nonetheless, inflation is an important macroeconomic indicator which can influence industrial development positively or negatively. Moreover, the aim of this study is to analyse the impact of inflation on the total automotive industry production in the Republic of Turkey resting on various econometric applications as JJ cointegration test, VECM, Wald test, Gtranger test and LSM. Copyright © 2019 Inderscience Enterprises Ltd.
Citation - WoS: 2
Citation - Scopus: 3
Economic Sentiment and Foreign Portfolio Flows: Evidence From Türkiye
(Central Bank Republic Turkey, 2024) Ozkan, Ibrahim; Erden, Lutfi; Gunes, Didem
The notable surge in capital flows in recent years has emerged as a key factor shaping the dynamics of international financial markets and influencing economic performance of emerging economies. Even though macroeconomic fundamentals of an economy can explain some of the patterns in international capital flows, behavioral factors also seem to be essential for positioning capital flows across countries. In this study, we aim to examine whether overall economic sentiment towards Turkish economy plays a significant role on net portfolio flows to Turkiye. To this end, we first construct a novel text-based sentiment index called "Turkish Economic Sentiment Index (TESI)", to capture the behavioral tendencies of international investors and media towards Turkiye. Our subsequent step integrates TESI into autoregressive distributed lag models (ARDL) alongside major pull-push determinants to assess whether market sentiment holds discernible influence on capital influx into Turkey. The results reveal that the TESI and VIX stand out as pivotal determinants influencing international portfolio flows. The TESI has a positive impact on portfolio flow dynamics, whereas the degree of global risk aversion inversely affects these flows. These findings align with the contention that a favorable sentiment can boost portfolio inflows to emerging markets. Conversely, heightened volatility expectations in global markets can prompt outflows from these economies.
Citation - WoS: 6
Citation - Scopus: 10
The Effect of Knowledge Management, Technological Capability and Innovation on the Enterprise Performance: a Comprehensive Emperical Study of the Turkish Textile Sector
(World Scientific Publ Co Pte Ltd, 2011) Hamsioglu, Ahmet Bugra; Gokmen, Aytac
This study aims to analyse the correlation among enterprise performance, knowledge management, technological capability and innovation. The sample of the study comprised 96 textile enterprises among the 500 largest companies in Turkey. Among those 96 companies, 45 of them responded to the research proposal and 225 questionnaires were assessed. The data acquired was analysed with factor analysis, correlation analysis, regression analysis and descriptive analysis. As a result of the research, a high level and significant correlation among the variables was established and the positive effect of knowledge management and technological capability on innovation was detected. Moreover, innovation was found to have a positive effect on performance as well.
Citation - Scopus: 10
Effectiveness of Smes in Turkish Economy and Agricultural Industry Sector
(2004) Baykal, N.A.; Gunes, E.
The latest developments and modulations in Turkish economy, adaptation process to European Union and entering into international markets, risks and uncertainties in these markets and some opportunities may affect SMEs in positive and negative aspects. In fact, new areas may open and some business sectors may slowly disappear. As part of the adaptation process with EU, SMEs deserve important order on the agenda while trying to enter international markets but are left to their fate in Turkey. In this article, the existing situations, problems and contributions of SMEs in industrial and agricultural sector to Turkish economy will be analysed, then policies that must be put in practice for more contribution to Turkish economy will be dwelt upon. Finally, solutions to these situations will be proposed. © 2004 Inderscience Enterprises Ltd.
Enlightenment in the Colony: the Jewish Question and the Crisis of Postcolonial Culture
(Routledge Journals, Taylor & Francis Ltd, 2011) Karadeli, Sedat Cem; Karadeli, Cem; Siyaset Bilimi ve Uluslararası İlişkiler
Citation - WoS: 3
Citation - Scopus: 5
Et ve Balık Eti Hanehalkı Talebinin Mevsimselliği: Bir Kentsel Alan Örneği
(Tubitak Scientific & Technological Research Council Turkey, 2005) Klasra, Mushtaq Ahmad; Fidan, Halil
Bu çalışma, Almost Ideal Demand System (AIDS)'i kullanarak, farklı mevsimlerde et ve balık için hane halkı talebine etkili faktörlerin tahmininde çıkarımlarda bulunmaktadır. Anket verileri kullanılarak, bütçe payı, talebin fiyat elastikiyeti, çapraz elastikiyet ve balık ve et için harcamalar, eşitlikler sistemi ile tahmin edilmiştir. Özellikle, Kurban Bayramı dönemlerinde bütçe paylarında artış olması durumu et ve balık tüketiminin mevsimsel etkisini inceleyen bu çalışmanın temel sonucu olmuştur. Bunun ötesinde, kentsel alanda yaşayan insanlar, hamsi hariç, fiyat artışlarına karşı duyarlı oldukları bulunamamıştır. Bu çalışma, politika yapıcıları, üreticiler ve pazarlama uzmanlarının izleyecekleri politikalarda etkili kaynak kullanımlarının düzenlenmesine, bu sonuçların onlara yardımcı olabilmesi bakımından önemlidir.
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 - Scopus: 15
Export-Led Economic Growth and the Case of Brazil: an Empirical Research
(Routledge, 2019) Gökmen, A.; Temiz Dinç, D.
The world has been globalized much more than ever before and this process integrates the economies of countries. Moreover, one means of integrating the economies of countries is trade. In this instance, the export-led economic growth emerges as a considerable determinant. Export-led economic growth is beneficial for the countries since it facilitates the inflow of foreign exchange, increases production, creates new employment opportunities and enhances the overall commercial volume. In this study, the correlation between export-led economic growth is explored for Brazil. Therefore, according to the findings of this paper as well as econometric and statistical applications, there is a bi-directional causality in Brazil since 1960s between economic development and exports in the long-run (this could also be termed as feedback); furthermore, in the short-run, there is export-led economic growth. The novelty of this paper is that, it is one of the latest studies investigating export-led economic growth for Brazil. © 2019, © 2019 Taylor & Francis Group, LLC.
Firm Survival in Times of Crisis: Do Innovation and Financing Constraints Matter? Insights from the COVID-19 Pandemic
(2023) Özşuca, Ekin Ayşe
Utilizing survey data collected over three rounds, this paper investigates the impact of pre-COVID innovation performance, innovation type, sources of knowledge, and the moderating role of financial constraints on survival following the outbreak of COVID-19. The findings pinpoint a strong and positive link between firm survival and innovation, especially process innovation, confirming the ability of innovators to adapt to new conditions as a determinant of survival. Moreover, relying on internal knowledge is found to increase the chance of survival and adaptability to times of crisis. The results further indicate that access to finance strengthens the positive impact of innovation on firm survival/adaptation.
Citation - WoS: 4
Citation - Scopus: 4
Fixed Point Results Via Simulation Functions in the Context of Quasi-Metric Space
(Univ Nis, Fac Sci Math, 2018) Fulga, Andreea; Tas, Aysegul
In this paper, we investigate the existing non-unique fixed points of certain mappings, via simulation functions in the context of quasi-metric space. Our main results generalize and unify several existing results on the topic in the literature.
Foreign direct investment & its correlation to economics: The case of Brazil
(2019) Dinç, Dilek Temiz; Gökmen, Aytaç
Capital accumulation is the first and foremost important factor to induce economic growth and development in a country. Yet, not every country in the world is bestowed with abundant capital. Thus, in this instance foreign direct investment (FDI) emerges as a good option to supply the necessary amount of capital to countries which are deprived of the necessary capital stock. Moreover, FDI, besides being a catalyst of economic development, is a significant means of transferring technology, knowledge, managerial know-how and constitutes new potentials to create employment opportunities, increase the production volume and enhance the foreign trade balance. Furthermore, the impact of FDI inflow on the economic growth is researched in this paper for Brazil by means of utilizing various econometric methods for the period of 1970–2017. According to the results of this study there is no positive causality between economic growth and FDI inflow in the short-run. Yet, there is a positive and significant causality between FDI inflow and economic growth in the long-run as well as this stems from the fact that investments lead to positive results gradually in the long-term which also means that investments shall be converted into production as much as possible. Moreover, the novelty of this paper is that it is one of the most up-to-date studies to research FDI–economic growth correlation on Brazil in the literature.
Citation - Scopus: 4
Foreign Direct Investment & Its Correlation To Economics: the Case of Brazil
(Routledge, 2019) Gökmen, A.; Dinç, D.T.
Capital accumulation is the first and foremost important factor to induce economic growth and development in a country. Yet, not every country in the world is bestowed with abundant capital. Thus, in this instance foreign direct investment (FDI) emerges as a good option to supply the necessary amount of capital to countries which are deprived of the necessary capital stock. Moreover, FDI, besides being a catalyst of economic development, is a significant means of transferring technology, knowledge, managerial know-how and constitutes new potentials to create employment opportunities, increase the production volume and enhance the foreign trade balance. Furthermore, the impact of FDI inflow on the economic growth is researched in this paper for Brazil by means of utilizing various econometric methods for the period of 1970–2017. According to the results of this study there is no positive causality between economic growth and FDI inflow in the short-run. Yet, there is a positive and significant causality between FDI inflow and economic growth in the long-run as well as this stems from the fact that investments lead to positive results gradually in the long-term which also means that investments shall be converted into production as much as possible. Moreover, the novelty of this paper is that it is one of the most up-to-date studies to research FDI–economic growth correlation on Brazil in the literature. © 2019, © 2019 Taylor & Francis Group, LLC.
Citation - Scopus: 10
Foreign Direct Investment (Fdi) and Export Relation in Turkey: 1991-2010
(2011) Temiz, D.; Gökmen, A.
Foreign direct investment (FDI) is an important element in development of economic power with regard to growth. FDI is an efficient tool to transfer new technologies, managerial skills, knowledge, capital flow and so on. On the other hand, exportation is another means to integrate the economy of a country with that of the world and secure economic growth as well enhancing economic advantages. In this article, we attempt to research the relationship between FDI and export. The article begins with the definition of FDI theory, explains the motives fostering FDI, FDI and Turkey, FDI and export relation theoretically, and concludes with an empirical analysis of FDI and export in Turkey. The empirical research investigates the relationship between export and FDI by using monthly time series data for the Turkish economy over the period from December 1991 to October 2010. The study applies of the following econometric techniques: unit root test, Johansen cointegration test, vector error correction model (VECM), and Granger causality test. The cointegration analysis suggests long-run equilibrium relationship between the examined variables. The results of the Granger causality test showed a causal relationship between these variables. The causality results are consistent with the results reported by the vector error correction model (VECM). © Taylor & Francis Group, LLC.
Citation - Scopus: 5
Foreign Direct Investment and Its Impact on Economic Performance: the Case of Turkey and Nigeria
(Routledge, 2015) Abubakar, M.S.; Temiz, D.; Gökmen, A.
Foreign Direct Investment (FDI) has been affecting global business affairs for decades. A country, whether developed or developing, necessitates more FDI entry than other countries because the FDI inflow may bring certain advantages such as capital accumulation, knowledge, know-how transfer, and obtainment of updated technology. Thus, the entry of FDI into a host country is expected to reveal positive aftermaths. The objective of this study is to analyze the impact of FDI entry into Nigeria and Turkey for the years 1970–2012 by using econometric methods such as VAR, VECM, unit root test, cointegration test, causality test, impulse-response functions, and variance decomposition. As a result, it was estimated that there is no positive impact of FDI entry on economic growth in Nigeria and in Turkey. © 2015, Copyright © Taylor & Francis Group, LLC.
Citation - WoS: 13
Citation - Scopus: 22
Gender Gap in Financial Inclusion: Evidence From Mena
(Univ Oviedo, 2019) Ozsuca, Ekin Ayse
This study aims to analyze the gender dimension of financial inclusion in MENA countries. Using the World Bank's 2017 Global Findex Database, it explores the underlying factors of gender differences in formal financial services usage via Fairlie decomposition method. The findings of the study indicate that a significant portion of the disparity in financial inclusion is attributable to employment, while age and tertiary education are also found as contributing factors to the financial inclusion gap. Another notable finding is that upper income quintiles contribute positively to the gender gap, indeed to a greater extent compared to lower income groups.
How Globalization Affects The Operational Efficiency of Emerging Market Firms?: A Comparative Analysis On Turkish SMEs
(Univ Oviedo, 2018) Akdoğan, 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 - WoS: 2
Citation - Scopus: 3
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.

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