Journals / Nevşehir Hacı Bektaş Veli Üniversitesi SBE Dergisi / 2026 / Cilt: 16 Sayı: 2

The level effect of the earthquake shock on Borsa İstanbul: An Ardl Analysis before and after the Kahramanmaraş Earthquake

Deprem şokunun Borsa İstanbul üzerindeki düzey etkileri: Kahramanmaraş Depremi öncesi ve sonrası ARDL Analizi

Mehmet Cihangir(OSMANİYE KORKUT ATA ÜNİVERSİTESİ, İKTİSADİ VE İDARİ BİLİMLER FAKÜLTESİ)0000-0002-3375-6408
Sevim Ezgi İslah(KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ, GÖKSUN UYGULAMALI BİLİMLER YÜKSEKOKULU)0000-0002-6443-329X
Pages
974–990
Publication Date
2026-06-29
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The findings reveal a positive and statistically significant long-term relationship between the USD/TRY exchange rate and the BIST All Equity Index, while gold prices have no significant effect on the index.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study examines the short- and long-term changes in the Istanbul Stock Exchange (BIST) following the earthquake centered in Kahramanmaraş on February 6, 2023.
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Key Findings & Data:The analysis uses daily data for the BIST All Equity Index from January 4, 2021, to February 28, 2025, and applies the ARDL bounds test approach.
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Conclusion & Impact:The findings reveal a positive and statistically significant long-term relationship between the USD/TRY exchange rate and the BIST All Equity Index, while gold prices have no significant effect on the index.
🔬Design:Modeling & Simulation
📍Scope:2023 Verileri
⚙️Variables:Kahramanmaraş Depremi · Sermaye Piyasaları · BİST

Abstract

This study examines the short- and long-term changes in the Istanbul Stock Exchange (BIST) following the earthquake centered in Kahramanmaraş on February 6, 2023. The analysis uses daily data for the BIST All Equity Index from January 4, 2021, to February 28, 2025, and applies the ARDL bounds test approach. The model includes the USD/TRY exchange rate, gold (ounce) prices, and a binary dummy variable separating pre- and post-earthquake periods as independent variables. The findings reveal a positive and statistically significant long-term relationship between the USD/TRY exchange rate and the BIST All Equity Index, while gold prices have no significant effect on the index. Results regarding the earthquake dummy variable show a significant deviation from the long-term equilibrium level of the index in the post-earthquake period. Short-term findings reveal a positive and significant effect specific to the day of the earthquake. In this context, the study demonstrates, within the framework of the ARDL bounds test approach, that the effects of earthquake shocks on capital markets are not limited to short-term price responses but can also create lasting effects on the long-term equilibrium level of the market.

Özet

Bu çalışma, 6 Şubat 2023 Kahramanmaraş merkezli depremin ardından Borsa İstanbul’da ortaya çıkan kısa ve uzun vadeli değişimleri incelemektedir. Analizde, BİST Tüm Endeksi’ne ait 04.01.2021–28.02.2025 dönemini kapsayan günlük veriler kullanılmış ve ARDL sınır testi yaklaşımı uygulanmıştır. Modelde USD/TRY döviz kuru, altın (ons) fiyatları ve deprem öncesi ve sonrası dönemi ayırt eden ikili bir kukla değişken bağımsız değişken olarak yer almaktadır. Elde edilen bulgular, USD/TRY kuru ile BİST Tüm Endeksi arasında uzun dönemde pozitif ve istatistiksel olarak anlamlı bir ilişki bulunduğunu, altın fiyatlarının ise endeks üzerinde anlamlı bir etkisinin olmadığını göstermektedir. Deprem kukla değişkenine ilişkin sonuçlar, deprem sonrası dönemde endeksin uzun dönem denge düzeyinde belirgin bir farklılaşma yaşandığına işaret etmektedir. Kısa dönem bulguları ise deprem gününe özgü pozitif ve anlamlı bir etkiyi ortaya koymaktadır. Bu yönüyle çalışma, deprem şoklarının sermaye piyasaları üzerindeki etkilerinin yalnızca kısa vadeli fiyat tepkileriyle sınırlı olmadığını, aynı zamanda piyasanın uzun dönem denge düzeyi üzerinde de kalıcı etkiler yaratabildiğini ARDL sınır testi yaklaşımı çerçevesinde ortaya koymaktadır.

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Cite This Article

Cihangir, M., İslah, S. E. (2026). The level effect of the earthquake shock on Borsa İstanbul: An Ardl Analysis before and after the Kahramanmaraş Earthquake. Nevşehir Hacı Bektaş Veli Üniversitesi SBE Dergisi, Cilt: 16 Sayı: 2, 974–990. https://doi.org/10.30783/nevsosbilen.1827970

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