The impact of geopolitical risk transmission on banking stability: Evidence from ASEAN

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Type of the article: Research Article

Abstract
Banking systems in emerging economies face mounting exposure to geopolitically induced shocks, yet the precise transmission pathways through which geopolitical disruptions translate into fundamental banking vulnerabilities remain poorly understood, particularly in the ASEAN region. This study examines how geopolitical risk propagates into credit, liquidity, and operational dimensions of banking stability across five major ASEAN economies during the period 2022–2024. Employing a quantitative panel design, the study draws on daily-frequency data from 75 conventional commercial banks operating in Indonesia, Malaysia, Singapore, Thailand, and the Philippines. The analytical framework integrates a newly constructed ASEAN Geopolitical Risk Index derived from text mining and Natural Language Processing applied to over 50,000 regional news articles with Vector Autoregression (VAR) estimation, fixed-effects panel regression, and network-based spillover analysis. Results demonstrate that geopolitical risk exerts a statistically significant positive effect on credit risk (NPL: β = 0.324, p < 0.01) and liquidity risk (LDR: β = 0.287, p < 0.01), while its effect on operational risk (BOPO: β = 0.198, p < 0.05) is heterogeneous across countries. Singapore and Malaysia exhibit superior resilience compared to Indonesia and the Philippines. Network analysis identifies a credit-to-liquidity contagion mechanism with a transmission lag of two to three trading days, and spillover intensity escalates non-linearly with geopolitical stress severity. The study contributes the first region-specific geopolitical risk index for ASEAN, a hybrid VAR-network methodology for systemic risk analysis, and actionable evidence for macroprudential policy design and early warning system development in the region.

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    • Figure 1. Geopolitical risk transmission framework
    • Table 1. Descriptive statistics of research variables (N = 75 banks; 2022–2024)
    • Table 2. Country-level descriptive statistics: mean values (2022–2024)
    • Table 3. ASEAN Geopolitical Risk Index: dimensional structure and validity Statistics
    • Table 4. Geopolitical Risk Index by country and year (mean and standard deviation)
    • Table 5. Panel VAR estimation results
    • Table 6. Granger causality test results
    • Table 7. Diebold-Yilmaz spillover matrix (%)
    • Table 8. Spillover intensity by geopolitical risk regime
    • Table 9. Panel data estimation results: fixed effects vs. random effects
    • Table 10. Heterogeneity of geopolitical risk effects by bank size
    • Table 11. System GMM robustness estimation results
    • Conceptualization
      Suripto, Putri Irmala Sari
    • Formal Analysis
      Suripto, Supri Yanto
    • Funding acquisition
      Suripto
    • Methodology
      Suripto, Supri Yanto, Putri Irmala Sari
    • Project administration
      Suripto, Supri Yanto
    • Resources
      Suripto, Supri Yanto
    • Supervision
      Suripto, Supri Yanto
    • Validation
      Suripto, Putri Irmala Sari
    • Visualization
      Suripto, Putri Irmala Sari
    • Writing – original draft
      Suripto, Supri Yanto, Putri Irmala Sari
    • Writing – review & editing
      Suripto, Supri Yanto, Putri Irmala Sari
    • Data curation
      Supri Yanto
    • Software
      Supri Yanto
    • Investigation
      Putri Irmala Sari