Cross-Border Capital Flows and Exchange Rate Volatility: A Panel Data Study
Abstract
This study examines the systematic relationship between cross-border capital flows and exchange rate volatility within the global financial architecture. Utilizing an extensive panel dataset spanning multiple economic jurisdictions over a twenty-year period, this paper analyzes how foreign direct investment, portfolio equity, debt flows, and speculative short-term capital interact with macroprudential frameworks and institutional infrastructures. Unlike traditional localized economic models, our framework approaches the global monetary system as a complex, decentralized, and socio-technical infrastructure subject to systemic shocks, structural path dependencies, and technological accelerations. The empirical investigation reveals that while foreign direct investment exerts a stabilizing influence due to its illiquid nature and alignment with physical infrastructure, portfolio and short-term debt flows significantly exacerbate exchange rate volatility. This destabilization is particularly pronounced in emerging market economies that lack deep financial buffering mechanisms or robust institutional governance. We further examine the structural trade-offs inherent in capital control deployment, the role of algorithmic trading platforms in accelerating capital flight, and the geopolitical dimensions of reserve currency dependence. Ultimately, the paper provides a comprehensive blueprint for structural and macroprudential governance designed to enhance the systemic robustness, equity, and long-term sustainability of the global financial system against disruptive capital reallocations.
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