Oktay Özkan profile image
Oktay Özkan Assoc. Prof. Dr. GAZİOSMANPAŞA ÜNİVERSİTESİ, İKTİSADİ VE İDARİ BİLİMLER FAKÜLTESİ
Publication 19 Review 29 CrossRef Cited 87 TR Dizin Cited 49
19 Publication
29 Review
87 CrossRef Cited
49 TR Dizin Cited
0000-0001-9419-8115
57223222815

Research Fields

Financial Forecast and Modelling Financial Risk Management Financial Markets and Institutions Investment and Portfolio Management

Institution

GAZİOSMANPAŞA ÜNİVERSİTESİ, İKTİSADİ VE İDARİ BİLİMLER FAKÜLTESİ

Popular Publications

KREDİ TEMERRÜT TAKASI, DÖVİZ KURU VE BİST100 ENDEKSİ İLİŞKİSİ
Authors: Eyyüp Ensari Şahin , Oktay Özkan
Published: 2018 , Hitit Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
DOI: 10.17218/hititsosbil.450178
CITED 40 FAVORITE 1 TOTAL DOWNLOAD COUNT 2462

40

1

2462

Publications

Investigating the Relationship between Energy and Metal Volatility and the Turkish Stock Exchange under Geopolitical Uncertainties
Authors: Oktay Özkan , İsmail Tuygun , Yakup Al
Published: 2025 , Hitit Journal of Social Sciences
DOI: 10.17218/hititsbd.1552535
FAVORITE 0 TOTAL DOWNLOAD COUNT 423

0

423

Quantıle Connectedness Analysıs of Tradıtıonal Investment Instruments in Turkey
Authors: Recep Çakar , Oktay Özkan
Published: 2025 , Optimum Journal of Economics and Management Sciences
DOI: 10.17541/optimum.1619140
FAVORITE 0 TOTAL DOWNLOAD COUNT 519

0

519

The impact of energy uncertainties on the stock and foreign exchange markets: Empirical evidence from Türkiye
Authors: Oktay Özkan , Osman Köseoğlu , Tuğba Bilkan
Published: 2025 , Afyon Kocatepe University Journal of Economics and Administrative Sciences
DOI: 10.33707/akuiibfd.1595322
FAVORITE 0 TOTAL DOWNLOAD COUNT 735

0

735

The Impact of Financial Development on Ecological Footprint in Turkey: Empirical Evidence from the Novel Dynamic ARDL Simulations Approach
Authors: Oktay Özkan , Mustafa Necati Çoban
Published: 2022 , Journal of Social Sciences of Mus Alparslan University
DOI: 10.18506/anemon.1124658
FAVORITE 0 TOTAL DOWNLOAD COUNT 723

0

723

POLLUTION HALO HYPOTHESIS AND ECONOMIC GROWTH, ECONOMIC GLOBALIZATION, AND ECOLOGICAL FOOTPRINT NEXUS IN TURKEY: EVIDENCE FROM KRLS
Authors: Oktay Özkan , Mustafa Necati Çoban
Published: 2022 , International Journal of Management Economics and Business
DOI: 10.17130/ijmeb.1143139
FAVORITE 0 TOTAL DOWNLOAD COUNT 1478

0

1478

Energy Consumption, Trade Openness, CO2 Emissions, and the Pollution Haven Hypothesis in Turkey: Evidence from Novel Dynamic ARDL Simulations
Authors: Mustafa Necati Çoban , Oktay Özkan
Published: 2022 , Kırklareli University Journal of the Faculty of Economics and Administrative Sciences
DOI: 10.53306/klujfeas.1147997
FAVORITE 0 TOTAL DOWNLOAD COUNT 1236

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1236

ENVIRONMENTAL KUZNETS CURVE: INVESTIGATION THE IMPACT OF GLOBALIZATION AND ECONOMIC GROWTH ON THE ENVIRONMENT IN TURKEY VIA NOVEL DYNAMIC ARDL SIMULATIONS MODEL
Authors: Mustafa Necati Çoban , Oktay Özkan
Published: 2022 , Akademik Hassasiyetler
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1142

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1142

Investigation of Momentum and Contrarian Anomalies in the Islamic Stocks: Empirical Evidence from Turkey
Authors: Oktay Özkan , Recep Çakar
Published: 2021 , Sosyoekonomi
DOI: 10.17233/sosyoekonomi.2021.03.13
FAVORITE 0 TOTAL DOWNLOAD COUNT 944

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944

EFFECTS OF GEOPOLITICAL RISKS ON FOREIGN EXCHANGE MARKETS: AN EMPIRICAL STUDY ON BRICS-T COUNTRIES WITH NONPARAMETRİC CAUSALITY-IN-QUANTILES TEST
Authors: Oktay Özkan
Published: 2020 , The World of Accounting Science
DOI: 10.31460/mbdd.692021
FAVORITE 0 TOTAL DOWNLOAD COUNT 1422

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1422

WEAK FORM INFORMATIONAL EFFICIENCY OF ISLAMIC INDICES IN TURKEY
Authors: Oktay Özkan , Recep Çakar
Published: 2020 , Hacettepe University Journal of Economics and Administrative Sciences
DOI: 10.17065/huniibf.700420
FAVORITE 0 TOTAL DOWNLOAD COUNT 926

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926

The Time-Varying Impact of Covid-19 on Stock Returns: Evidence on Developed Countries from a Bootstrap Rolling Window Causality Method
Authors: Türker Şimşek , Oktay Özkan
Published: 2020 , Journal of Research in Economics Politics and Finance
DOI: 10.30784/epfad.781992
FAVORITE 0 TOTAL DOWNLOAD COUNT 1052

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1052

Volatility Jump: The Effect of COVID-19 on Turkey Stock Market
Authors: Oktay Özkan
Published: 2020 , Gaziantep University Journal of Social Sciences
DOI: 10.21547/jss.766890
FAVORITE 0 TOTAL DOWNLOAD COUNT 1649

0

1649

An Empirical Study on Turkey Foreign Exchange Market in the Context of Weak Form Market Efficiency
Authors: Oktay Özkan
Published: 2020 , Journal of Research in Economics Politics and Finance
DOI: 10.30784/epfad.689506
FAVORITE 0 TOTAL DOWNLOAD COUNT 1062

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1062

FINANCIAL PERFORMANCE MEASUREMENT OF MANUFACTURING COMPANIES OPERATING ACCORDING TO ISLAMIC RULES IN TURKEY
Authors: Recep Çakar , Oktay Özkan
Published: 2020 , İstanbul Ticaret Üniversitesi Sosyal Bilimler Dergisi
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1189

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1189

Comparison of Mean-Variance and Single Index Optimization Methods in Developed and Developing Stock Exchanges
Authors: Oktay Özkan , Recep Çakar
Published: 2020 , Çankırı Karatekin Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
DOI: 10.18074/ckuiibfd.441098
FAVORITE 0 TOTAL DOWNLOAD COUNT 1230

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1230

Weak-Form Market Efficiency Comparison of Stock Markets on Global Scale: An Empirical Study on G-20 Members
Authors: Oktay Özkan
Published: 2020 , Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi
DOI: 10.18026/cbayarsos.695125
FAVORITE 0 TOTAL DOWNLOAD COUNT 867

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867

THE APPLICABILITY OF MANDATORY ROTATION ON THE BASIS OF INDEPENDENT AUDIT FOR PROFESSIONAL ACCOUNTANTS
Authors: Fatih Coşkun Ertaş , İbrahim Çidem , Oktay Özkan
Published: 2019 , The World of Accounting Science
DOI: 10.31460/mbdd.410055
FAVORITE 0 TOTAL DOWNLOAD COUNT 1300

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1300

Estimation Of Asymmetric Volatility: Crypto Money Application
Authors: Eyyüp Ensari Şahin , Oktay Özkan
Published: 2018 , Bilecik Şeyh Edebali University Journal of Social Science
DOI: 10.33905/bseusbed.450018
FAVORITE 0 TOTAL DOWNLOAD COUNT 2669

0

2669

KREDİ TEMERRÜT TAKASI, DÖVİZ KURU VE BİST100 ENDEKSİ İLİŞKİSİ
Authors: Eyyüp Ensari Şahin , Oktay Özkan
Published: 2018 , Hitit Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
DOI: 10.17218/hititsosbil.450178
FAVORITE 1 TOTAL DOWNLOAD COUNT 2462

1

2462

Articles published in
Afyon Kocatepe University Journal of Economics and Administrative Sciences
Afyon Kocatepe University Journal of Economics and Administrative Sciences
Akademik Hassasiyetler
Akademik Hassasiyetler
Bilecik Şeyh Edebali University Journal of Social Science
Bilecik Şeyh Edebali University Journal of Social Science
Çankırı Karatekin Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Çankırı Karatekin Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Gaziantep University Journal of Social Sciences
Gaziantep University Journal of Social Sciences
Hacettepe University Journal of Economics and Administrative Sciences
Hacettepe University Journal of Economics and Administrative Sciences
Hitit Journal of Social Sciences
Hitit Journal of Social Sciences
Hitit Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
Hitit Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
İstanbul Ticaret Üniversitesi Sosyal Bilimler Dergisi
İstanbul Ticaret Üniversitesi Sosyal Bilimler Dergisi
International Journal of Management Economics and Business
International Journal of Management Economics and Business
Journal of Research in Economics Politics and Finance
Journal of Research in Economics Politics and Finance
Journal of Social Sciences of Mus Alparslan University
Journal of Social Sciences of Mus Alparslan University
Kırklareli University Journal of the Faculty of Economics and Administrative Sciences
Kırklareli University Journal of the Faculty of Economics and Administrative Sciences
Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi
Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi
Optimum Journal of Economics and Management Sciences
Optimum Journal of Economics and Management Sciences
Sosyoekonomi
Sosyoekonomi
The World of Accounting Science
The World of Accounting Science
Editorial Board Memberships
Kafkas University Journal of Economics and Administrative Sciences Faculty
Kafkas University Journal of Economics and Administrative Sciences Faculty

Reviews

Academic Review of Economics and Administrative Sciences
Academic Review of Economics and Administrative Sciences
Alanya Academic Review
Alanya Academic Review
Chaos Theory and Applications
Chaos Theory and Applications
Dogus University Journal
Dogus University Journal
Dokuz Eylül Üniversitesi İşletme Fakültesi Dergisi
Dokuz Eylül Üniversitesi İşletme Fakültesi Dergisi
Erciyes University Journal of Faculty of Economics and Administrative Sciences
Erciyes University Journal of Faculty of Economics and Administrative Sciences
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Gümüşhane University Journal of Social Sciences
Gümüşhane University Journal of Social Sciences
Hitit Journal of Social Sciences
Hitit Journal of Social Sciences
Hitit Theology Journal
Hitit Theology Journal
International Journal of Energy Studies
International Journal of Energy Studies
Istanbul Journal of Economics
Istanbul Journal of Economics
Journal of Economics and Administrative Sciences
Journal of Economics and Administrative Sciences
Journal of Economics Business and Political Researches
Journal of Economics Business and Political Researches
Journal of Institute of Social Sciences
Journal of Institute of Social Sciences
Journal of Management and Economics
Journal of Management and Economics
Journal of Management and Economics Research
Journal of Management and Economics Research
Journal of Mehmet Akif Ersoy University Economics and Administrative Sciences Faculty
Journal of Mehmet Akif Ersoy University Economics and Administrative Sciences Faculty
Journal of Research in Economics Politics and Finance
Journal of Research in Economics Politics and Finance
Journal of Strategic Management Research
Journal of Strategic Management Research
Kafkas University Journal of Economics and Administrative Sciences Faculty
Kafkas University Journal of Economics and Administrative Sciences Faculty
Kastamonu Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Kastamonu Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Malatya Turgut Özal Üniversitesi İşletme ve Yönetim Bilimleri Dergisi
Malatya Turgut Özal Üniversitesi İşletme ve Yönetim Bilimleri Dergisi
ODU Journal of Social Sciences Research
ODU Journal of Social Sciences Research
Research of Financial Economic and Social Studies
Research of Financial Economic and Social Studies
The Journal of Social Sciences Research
The Journal of Social Sciences Research

Publications

Investigating the Relationship between Energy and Metal Volatility and the Turkish Stock Exchange under Geopolitical Uncertainties
Authors: Oktay Özkan , İsmail Tuygun , Yakup Al
Published: 2025 , Hitit Journal of Social Sciences
DOI: 10.17218/hititsbd.1552535
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 423

1

0

423

The impact of energy uncertainties on the stock and foreign exchange markets: Empirical evidence from Türkiye
Authors: Oktay Özkan , Osman Köseoğlu , Tuğba Bilkan
Published: 2025 , Afyon Kocatepe University Journal of Economics and Administrative Sciences
DOI: 10.33707/akuiibfd.1595322
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 735

2

0

735

The Impact of Financial Development on Ecological Footprint in Turkey: Empirical Evidence from the Novel Dynamic ARDL Simulations Approach
Authors: Oktay Özkan , Mustafa Necati Çoban
Published: 2022 , Journal of Social Sciences of Mus Alparslan University
DOI: 10.18506/anemon.1124658
CITED 3 FAVORITE 0 TOTAL DOWNLOAD COUNT 723

3

0

723

POLLUTION HALO HYPOTHESIS AND ECONOMIC GROWTH, ECONOMIC GLOBALIZATION, AND ECOLOGICAL FOOTPRINT NEXUS IN TURKEY: EVIDENCE FROM KRLS
Authors: Oktay Özkan , Mustafa Necati Çoban
Published: 2022 , International Journal of Management Economics and Business
DOI: 10.17130/ijmeb.1143139
CITED 3 FAVORITE 0 TOTAL DOWNLOAD COUNT 1478

3

0

1478

Energy Consumption, Trade Openness, CO2 Emissions, and the Pollution Haven Hypothesis in Turkey: Evidence from Novel Dynamic ARDL Simulations
Authors: Mustafa Necati Çoban , Oktay Özkan
Published: 2022 , Kırklareli University Journal of the Faculty of Economics and Administrative Sciences
DOI: 10.53306/klujfeas.1147997
CITED 7 FAVORITE 0 TOTAL DOWNLOAD COUNT 1236

7

0

1236

EFFECTS OF GEOPOLITICAL RISKS ON FOREIGN EXCHANGE MARKETS: AN EMPIRICAL STUDY ON BRICS-T COUNTRIES WITH NONPARAMETRİC CAUSALITY-IN-QUANTILES TEST
Authors: Oktay Özkan
Published: 2020 , The World of Accounting Science
DOI: 10.31460/mbdd.692021
CITED 4 FAVORITE 0 TOTAL DOWNLOAD COUNT 1422

4

0

1422

WEAK FORM INFORMATIONAL EFFICIENCY OF ISLAMIC INDICES IN TURKEY
Authors: Oktay Özkan , Recep Çakar
Published: 2020 , Hacettepe University Journal of Economics and Administrative Sciences
DOI: 10.17065/huniibf.700420
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 926

2

0

926

Volatility Jump: The Effect of COVID-19 on Turkey Stock Market
Authors: Oktay Özkan
Published: 2020 , Gaziantep University Journal of Social Sciences
DOI: 10.21547/jss.766890
CITED 9 FAVORITE 0 TOTAL DOWNLOAD COUNT 1649

9

0

1649

An Empirical Study on Turkey Foreign Exchange Market in the Context of Weak Form Market Efficiency
Authors: Oktay Özkan
Published: 2020 , Journal of Research in Economics Politics and Finance
DOI: 10.30784/epfad.689506
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1062

1

0

1062

Weak-Form Market Efficiency Comparison of Stock Markets on Global Scale: An Empirical Study on G-20 Members
Authors: Oktay Özkan
Published: 2020 , Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi
DOI: 10.18026/cbayarsos.695125
CITED 4 FAVORITE 0 TOTAL DOWNLOAD COUNT 867

4

0

867

Estimation Of Asymmetric Volatility: Crypto Money Application
Authors: Eyyüp Ensari Şahin , Oktay Özkan
Published: 2018 , Bilecik Şeyh Edebali University Journal of Social Science
DOI: 10.33905/bseusbed.450018
CITED 11 FAVORITE 0 TOTAL DOWNLOAD COUNT 2669

11

0

2669

KREDİ TEMERRÜT TAKASI, DÖVİZ KURU VE BİST100 ENDEKSİ İLİŞKİSİ
Authors: Eyyüp Ensari Şahin , Oktay Özkan
Published: 2018 , Hitit Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
DOI: 10.17218/hititsosbil.450178
CITED 40 FAVORITE 1 TOTAL DOWNLOAD COUNT 2462

40

1

2462

Popular Publications: It is determined automatically by the researchers doing research in DergiPark according to the statistics of being added to the favorites. CrossRef Cited: The citations shown in DergiPark are drawn from CrossRef. For this, the cited and cited articles must be registered in CrossRef (DOI number). ^: Citation numbers are reflected in the system by DergiPark at certain periods.