İstemi Çömlekçi profile image
İstemi Çömlekçi Prof. Dr. DÜZCE ÜNİVERSİTESİ
Publication 27 Review 53 CrossRef Cited 37 TR Dizin Cited 23
27 Publication
53 Review
37 CrossRef Cited
23 TR Dizin Cited
0000-0001-8922-071X

Research Fields

Finance and Investment

Institution

DÜZCE ÜNİVERSİTESİ

Popular Publications

Evaluation of the Performance of Mutual Stock Fund Strategies Using the Entropy-Based Topsis Method
Authors: İstemi Çömlekçi
Published: 2024 , Fiscaoeconomia
DOI: 10.25295/fsecon.1470123
CITED 0 FAVORITE 3 TOTAL DOWNLOAD COUNT 2401

0

3

2401

Fama French 5 Factor Model Versus Alternative Fama French 5 Factor Model: Evidence from Selected Islamic Countries
Authors: Nevin Özer , Mehmet Akif Öncü , Ali Özer , İstemi Çömlekçi
Published: 2021 ,
DOI: 10.28949/bilimname.952079
CITED 0 FAVORITE 2 TOTAL DOWNLOAD COUNT 1653

0

2

1653

Investigation of the Performances of Shares in First Public Offerings by Event Analysis
Authors: İstemi Çömlekçi , Nevin Özer , Birol Coşkun
Published: 2021 , Alanya Academic Review
DOI: 10.29023/alanyaakademik.869124
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 1320

1

1

1320

Determinants of Borsa Istanbul Small-Cap Bubble
Authors: Serkan Unal , İstemi Çömlekçi
Published: 2021 , Journal of the Human and Social Science Researches
DOI: 10.15869/itobiad.885136
CITED 2 FAVORITE 1 TOTAL DOWNLOAD COUNT 1532

2

1

1532

Turizm Endeksleri Arasındaki Eşbütünleşme İlişkisi
Authors: Oğuzhan Gökmen, İstemi Çömlekçi
Published: 2018 , Journal of Travel and Hotel Business
DOI: 10.24010/soid.453157
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 1869

4

1

1869

Publications

Assessing the Performance of Different Bank Types Based on Total and Systematic Risk
Authors: İstemi Çömlekçi
Published: 2025 , EKEV Akademi Dergisi
DOI: 10.17753/sosekev.1672175
FAVORITE 0 TOTAL DOWNLOAD COUNT 343

0

343

Comparison of The Performances of Islamic Mutual Funds and Debt Funds in Turkey
Authors: İstemi Çömlekçi , Osman Kartal , Nevin Özer , Ali Özer
Published: 2025 ,
DOI: 10.5281/zenodo.15774075
FAVORITE 0 TOTAL DOWNLOAD COUNT 2710

0

2710

Evaluation of Financial Performance of Tourism Business with Entropy Based Topsis Method
Authors: İstemi Çömlekçi
Published: 2025 , Journal of Travel and Hotel Business
DOI: 10.24010/soid.1479270
FAVORITE 0 TOTAL DOWNLOAD COUNT 769

0

769

IMPACT OF COVID 19 ANNOUNCEMENTS AND GOVERNMENT RESTRICTIONS ON CDS PREMIUMS OF BRICS-T COUNTRIES
Authors: Nevin Özer , Ali Özer , Osman Kartal , İstemi Çömlekçi
Published: 2025 , Dogus University Journal
DOI: 10.31671/doujournal.1499782
FAVORITE 0 TOTAL DOWNLOAD COUNT 366

0

366

Examining the Ramadan Anomaly in Borsa Istanbul: A Research on The Participation Index
Authors: İstemi Çömlekçi
Published: 2024 , Electronic Journal of Social Sciences
DOI: 10.17755/esosder.1491110
FAVORITE 0 TOTAL DOWNLOAD COUNT 767

0

767

The effectiveness of competition conditions in the stock funds market: The case of Turkey
Authors: Serkan Unal , Ali Özer , İstemi Çömlekçi , Kerim Çepni
Published: 2024 , ODU Journal of Social Sciences Research
DOI: 10.48146/odusobiad.1273828
FAVORITE 0 TOTAL DOWNLOAD COUNT 1468

0

1468

Evaluation of the Performance of Mutual Stock Fund Strategies Using the Entropy-Based Topsis Method
Authors: İstemi Çömlekçi
Published: 2024 , Fiscaoeconomia
DOI: 10.25295/fsecon.1470123
FAVORITE 3 TOTAL DOWNLOAD COUNT 2401

3

2401

Persistence of Returns of Stock Funds Traded in TEFAS
Authors: İstemi Çömlekçi , Serkan Unal , Kerim Çepni
Published: 2024 , Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
DOI: 10.17153/oguiibf.1393399
FAVORITE 0 TOTAL DOWNLOAD COUNT 8416

0

8416

The Effect of Global Financial Stress on The Economies of Turkish States
Authors: Ali Özer , Serkan Unal , İstemi Çömlekçi
Published: 2024 , Journal of Selçuk University Social Sciences Vocational School
DOI: 10.29249/selcuksbmyd.1319691
FAVORITE 1 TOTAL DOWNLOAD COUNT 1409

1

1409

Problems faced by hotel businesses within the scope of environmental analysis factors: The case of Akçakoca
Authors: Muammer Mesci , İstemi Çömlekçi , Emrah Öztürk , Orhan Batman
Published: 2024 , Journal of Multidisciplinary Academic Tourism
DOI: 10.31822/jomat.2024-9-1-1
FAVORITE 1 TOTAL DOWNLOAD COUNT 1419

1

1419

Impact of COVID-19 Announcements and Government Restrictions on Country Stock Exchanges: Developed and Emerging Markets
Authors: Nevin Özer , Ali Özer , İstemi Çömlekçi
Published: 2024 , Dumlupınar Üniversitesi Sosyal Bilimler Dergisi
DOI: 10.51290/dpusbe.1333003
FAVORITE 0 TOTAL DOWNLOAD COUNT 652

0

652

CAN ChatGPT BE USED FOR STOCK VALUATION? A RESEARCH ON BORSA ISTANBUL
Authors: Ali Özer , İstemi Çömlekçi , Serkan Unal
Published: 2023 , Uluslararası Bankacılık Ekonomi ve Yönetim Araştırmaları Dergisi
DOI: 10.52736/ubeyad.1287067
FAVORITE 1 TOTAL DOWNLOAD COUNT 3127

1

3127

SME Supports for Access to Finance in the European Union; Review of COSME Program
Authors: Utku Can Aydın , İstemi Çömlekçi
Published: 2023 , Sakarya Üniversitesi İşletme Enstitüsü Dergisi
DOI: 10.47542/sauied.1132389
FAVORITE 1 TOTAL DOWNLOAD COUNT 2360

1

2360

Stock Market Reaction to Covid-19 Vaccination Rate: International Study
Authors: Serkan Unal , İstemi Çömlekçi , Ali Özer
Published: 2022 , Konuralp Medical Journal
DOI: 10.18521/ktd.1022009
FAVORITE 0 TOTAL DOWNLOAD COUNT 763

0

763

TESTING THE PECKING ORDER THEORY ON COMPANIES IN THE PARTICIPATION 30
Authors: Öznur Şamandar , Nevin Özer , İstemi Çömlekçi
Published: 2021 , The World of Accounting Science
DOI: 10.31460/mbdd.883601
FAVORITE 0 TOTAL DOWNLOAD COUNT 1320

0

1320

Determinants of Borsa Istanbul Small-Cap Bubble
Authors: Serkan Unal , İstemi Çömlekçi
Published: 2021 , Journal of the Human and Social Science Researches
DOI: 10.15869/itobiad.885136
FAVORITE 1 TOTAL DOWNLOAD COUNT 1532

1

1532

Fama French 5 Factor Model Versus Alternative Fama French 5 Factor Model: Evidence from Selected Islamic Countries
Authors: Nevin Özer , Mehmet Akif Öncü , Ali Özer , İstemi Çömlekçi
Published: 2021 ,
DOI: 10.28949/bilimname.952079
FAVORITE 2 TOTAL DOWNLOAD COUNT 1653

2

1653

Classification of Firms in the BIST100 Index By Pre-COVID-19 and COVID-19 Period Fınancial Data: A Hierarchical Cluster Analysis Application
Authors: İsmail Durak , İstemi Çömlekçi
Published: 2021 , Yaşar Üniversitesi E-Dergisi
DOI: 10.19168/jyasar.923457
FAVORITE 0 TOTAL DOWNLOAD COUNT 2277

0

2277

Investigation of the Performances of Shares in First Public Offerings by Event Analysis
Authors: İstemi Çömlekçi , Nevin Özer , Birol Coşkun
Published: 2021 , Alanya Academic Review
DOI: 10.29023/alanyaakademik.869124
FAVORITE 1 TOTAL DOWNLOAD COUNT 1320

1

1320

COMPARISINGTHE PERFORMANCE OF FUNDS FOLLOWING CONCENTRATION STRATEGY AND DIVERSIFICATION STRATEGY
Authors: Ali Özer , İstemi Çömlekçi
Published: 2020 , Electronic Journal of Social Sciences
DOI: 10.17755/esosder.716887
FAVORITE 1 TOTAL DOWNLOAD COUNT 2198

1

2198

Turizm Endeksleri Arasındaki Eşbütünleşme İlişkisi
Authors: Oğuzhan Gökmen, İstemi Çömlekçi
Published: 2018 , Journal of Travel and Hotel Business
DOI: 10.24010/soid.453157
FAVORITE 1 TOTAL DOWNLOAD COUNT 1869

1

1869

FAMA-FRENCH ÜÇ FAKTÖRLÜ VARLIK FİYATLAMA MODELİ’NİN GEÇERLİLİĞİ: BORSA İSTANBUL ÜZERİNE BİR ARAŞTIRMA
Authors: Erdem Genç, İstemi Çömlekçi
Published: 2018 ,
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1038

0

1038

İSLAMİ FİNANSAL OKURYAZARLIK DÜZEYİNİN BELİRLENMESİ: KATILIM BANKALARI MÜŞTERİLERİ ÜZERİNE BİR ARAŞTIRMA
Authors: İstemi Çömlekçi
Published: 2017 , Electronic Journal of Social Sciences
DOI: 10.17755/esosder.304175
FAVORITE 0 TOTAL DOWNLOAD COUNT 2748

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2748

Beş Yıldızlı Otel İşletmelerinde Entelektüel Sermayenin Belirleyicileri: Yöneticilerin Bakış Açısına Dayanan Bir Değerlendirme
Authors: Yunus Emre Taşgit , İstemi Çömlekçi , Mehmet Akif Öncü
Published: 2015 , Anatolia: Journal of Tourism Research
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 857

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857

Measuring Efficiency based on Financial Performance: A Research on Tourism Enterprises
Authors: Burhanettin Zengin , İstemi Çömlekçi , Zeynep Mesci
Published: 2013 , Finans Politik ve Ekonomik Yorumlar
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 296

0

296

THE RELATION OF TOURISM REVENUES AND VARIOUS MACROECONOMIC INDICATORS: THE CASE OF TURKEY (1992-2011)
Authors: Oğuz Kara , İstemi Çömlekçi , Vahdet Kaya
Published: 2012 , The International Journal of Economic and Social Research
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 3421

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3421

A RESEARCH ON FINANCIAL STRATEGIES APPLIED BY THE AIRLINES COMPANIES
Authors: Mehmet Akif Öncü , İstemi Çömlekçi , Erhan Coşkun
Published: 2010 , The International Journal of Economic and Social Research
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 9642

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9642

Articles published in
Alanya Academic Review
Alanya Academic Review
Anatolia: Journal of Tourism Research
Anatolia: Journal of Tourism Research
Dogus University Journal
Dogus University Journal
Dumlupınar Üniversitesi Sosyal Bilimler Dergisi
Dumlupınar Üniversitesi Sosyal Bilimler Dergisi
EKEV Akademi Dergisi
EKEV Akademi Dergisi
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Fiscaoeconomia
Fiscaoeconomia
Journal of Multidisciplinary Academic Tourism
Journal of Multidisciplinary Academic Tourism
Journal of Selçuk University Social Sciences Vocational School
Journal of Selçuk University Social Sciences Vocational School
ODU Journal of Social Sciences Research
ODU Journal of Social Sciences Research
Electronic Journal of Social Sciences
Electronic Journal of Social Sciences
Finans Politik ve Ekonomik Yorumlar
Finans Politik ve Ekonomik Yorumlar
Journal of the Human and Social Science Researches
Journal of the Human and Social Science Researches
Journal of Travel and Hotel Business
Journal of Travel and Hotel Business
Konuralp Medical Journal
Konuralp Medical Journal
Sakarya Üniversitesi İşletme Enstitüsü Dergisi
Sakarya Üniversitesi İşletme Enstitüsü Dergisi
The International Journal of Economic and Social Research
The International Journal of Economic and Social Research
The World of Accounting Science
The World of Accounting Science
Uluslararası Bankacılık Ekonomi ve Yönetim Araştırmaları Dergisi
Uluslararası Bankacılık Ekonomi ve Yönetim Araştırmaları Dergisi
Yaşar Üniversitesi E-Dergisi
Yaşar Üniversitesi E-Dergisi

Reviews

Afyon Kocatepe University Journal of Economics and Administrative Sciences
Afyon Kocatepe University Journal of Economics and Administrative Sciences
Academic Review of Economics and Administrative Sciences
Academic Review of Economics and Administrative Sciences
Alanya Academic Review
Alanya Academic Review
Anadolu Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Anadolu Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi
Bolu Abant İzzet Baysal Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
Bolu Abant İzzet Baysal Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
Electronic Journal of Social Sciences
Electronic Journal of Social Sciences
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
Fiscaoeconomia
Fiscaoeconomia
Iğdır Üniversitesi Sosyal Bilimler Dergisi
Iğdır Üniversitesi Sosyal Bilimler Dergisi
International Journal of Western Black Sea Social and Humanities Sciences
International Journal of Western Black Sea Social and Humanities Sciences
Journal of Economics and Administrative Sciences
Journal of Economics and Administrative Sciences
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 Travel and Hotel Business
Journal of Travel and Hotel Business
Konuralp Medical Journal
Konuralp Medical Journal
Research of Financial Economic and Social Studies
Research of Financial Economic and Social Studies
The International Journal of Economic and Social Research
The International Journal of Economic and Social Research
Turkish Research Journal of Academic Social Science
Turkish Research Journal of Academic Social Science
Ufuk Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
Ufuk Üniversitesi Sosyal Bilimler Enstitüsü Dergisi
Yaşar Üniversitesi E-Dergisi
Yaşar Üniversitesi E-Dergisi

Publications

Evaluation of Financial Performance of Tourism Business with Entropy Based Topsis Method
Authors: İstemi Çömlekçi
Published: 2025 , Journal of Travel and Hotel Business
DOI: 10.24010/soid.1479270
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 769

1

0

769

Persistence of Returns of Stock Funds Traded in TEFAS
Authors: İstemi Çömlekçi , Serkan Unal , Kerim Çepni
Published: 2024 , Eskişehir Osmangazi University Journal of Economics and Administrative Sciences
DOI: 10.17153/oguiibf.1393399
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 8416

1

0

8416

The Effect of Global Financial Stress on The Economies of Turkish States
Authors: Ali Özer , Serkan Unal , İstemi Çömlekçi
Published: 2024 , Journal of Selçuk University Social Sciences Vocational School
DOI: 10.29249/selcuksbmyd.1319691
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 1409

4

1

1409

CAN ChatGPT BE USED FOR STOCK VALUATION? A RESEARCH ON BORSA ISTANBUL
Authors: Ali Özer , İstemi Çömlekçi , Serkan Unal
Published: 2023 , Uluslararası Bankacılık Ekonomi ve Yönetim Araştırmaları Dergisi
DOI: 10.52736/ubeyad.1287067
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 3127

1

1

3127

SME Supports for Access to Finance in the European Union; Review of COSME Program
Authors: Utku Can Aydın , İstemi Çömlekçi
Published: 2023 , Sakarya Üniversitesi İşletme Enstitüsü Dergisi
DOI: 10.47542/sauied.1132389
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 2360

1

1

2360

Stock Market Reaction to Covid-19 Vaccination Rate: International Study
Authors: Serkan Unal , İstemi Çömlekçi , Ali Özer
Published: 2022 , Konuralp Medical Journal
DOI: 10.18521/ktd.1022009
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 763

1

0

763

Determinants of Borsa Istanbul Small-Cap Bubble
Authors: Serkan Unal , İstemi Çömlekçi
Published: 2021 , Journal of the Human and Social Science Researches
DOI: 10.15869/itobiad.885136
CITED 2 FAVORITE 1 TOTAL DOWNLOAD COUNT 1532

2

1

1532

Classification of Firms in the BIST100 Index By Pre-COVID-19 and COVID-19 Period Fınancial Data: A Hierarchical Cluster Analysis Application
Authors: İsmail Durak , İstemi Çömlekçi
Published: 2021 , Yaşar Üniversitesi E-Dergisi
DOI: 10.19168/jyasar.923457
CITED 3 FAVORITE 0 TOTAL DOWNLOAD COUNT 2277

3

0

2277

Investigation of the Performances of Shares in First Public Offerings by Event Analysis
Authors: İstemi Çömlekçi , Nevin Özer , Birol Coşkun
Published: 2021 , Alanya Academic Review
DOI: 10.29023/alanyaakademik.869124
CITED 1 FAVORITE 1 TOTAL DOWNLOAD COUNT 1320

1

1

1320

COMPARISINGTHE PERFORMANCE OF FUNDS FOLLOWING CONCENTRATION STRATEGY AND DIVERSIFICATION STRATEGY
Authors: Ali Özer , İstemi Çömlekçi
Published: 2020 , Electronic Journal of Social Sciences
DOI: 10.17755/esosder.716887
CITED 6 FAVORITE 1 TOTAL DOWNLOAD COUNT 2198

6

1

2198

Turizm Endeksleri Arasındaki Eşbütünleşme İlişkisi
Authors: Oğuzhan Gökmen, İstemi Çömlekçi
Published: 2018 , Journal of Travel and Hotel Business
DOI: 10.24010/soid.453157
CITED 4 FAVORITE 1 TOTAL DOWNLOAD COUNT 1869

4

1

1869

İSLAMİ FİNANSAL OKURYAZARLIK DÜZEYİNİN BELİRLENMESİ: KATILIM BANKALARI MÜŞTERİLERİ ÜZERİNE BİR ARAŞTIRMA
Authors: İstemi Çömlekçi
Published: 2017 , Electronic Journal of Social Sciences
DOI: 10.17755/esosder.304175
CITED 12 FAVORITE 0 TOTAL DOWNLOAD COUNT 2748

12

0

2748

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.