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Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR

Cilt: 24 Sayı: 3 30 Eylül 2026
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Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR

Öz

This research analyzes the dynamic interaction among Geopolitical Risk, Economic Policy Uncertainty, XU100 return, and USD/TRY using the TVP-VAR method. Within the scope of the study, volatility spillovers are examined using a dataset representing a broad period between 01.03.2006 and 01.12.2024. According to the research findings, the connectedness among Geopolitical Risk, Economic Policy Uncertainty, XU100 return volatility, and USD/TRY volatility in Türkiye was observed at a low level before the 2008 global financial crisis. However, it peaked during the global financial crisis and returned to pre-crisis levels afterward. On the other hand, contrary to the claims frequently emphasized in the literature, total connectedness did not increase sharply during the Covid-19 pandemic. According to the Network Plot findings, Geopolitical Risk and the USD/TRY exchange rate are the most dominant variables in the system, while EPU is identified as the largest shock receiver. The results indicate that the exchange rate plays a decisive role in financial markets in Türkiye, that geopolitical risks act as an exogenous force triggering economic uncertainty, and that both the BIST100 index and Economic Policy Uncertainty assume a net shock-absorbing position in response to these shocks.

Anahtar Kelimeler

Dynamic connectedness, TVP-VAR, Spillover decomposition, Financial Contagion, Uncertanity.

Kaynakça

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Kaynak Göster

APA
Karabiyik, C. (2026). Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi, 24(3), 1074-1093. https://doi.org/10.18026/cbayarsos.1877602
AMA
1.Karabiyik C. Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi. 2026;24(3):1074-1093. doi:10.18026/cbayarsos.1877602
Chicago
Karabiyik, Can. 2026. “Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR”. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi 24 (3): 1074-93. https://doi.org/10.18026/cbayarsos.1877602.
EndNote
Karabiyik C (01 Eylül 2026) Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi 24 3 1074–1093.
IEEE
[1]C. Karabiyik, “Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR”, Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi, c. 24, sy 3, ss. 1074–1093, Eyl. 2026, doi: 10.18026/cbayarsos.1877602.
ISNAD
Karabiyik, Can. “Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR”. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi 24/3 (01 Eylül 2026): 1074-1093. https://doi.org/10.18026/cbayarsos.1877602.
JAMA
1.Karabiyik C. Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi. 2026;24:1074–1093.
MLA
Karabiyik, Can. “Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR”. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi, c. 24, sy 3, Eylül 2026, ss. 1074-93, doi:10.18026/cbayarsos.1877602.
Vancouver
1.Can Karabiyik. Geopolitical Risk, Policy Uncertainty, and Financial Volatility in Türkiye: A Dynamic Connectedness Analysis Using the TVP-VAR. Manisa Celal Bayar Üniversitesi Sosyal Bilimler Dergisi. 01 Eylül 2026;24(3):1074-93. doi:10.18026/cbayarsos.1877602