This article explores the systemic endogenous and exogenous threats facing global monetary and financial stability amidst escalating geo-economic fragmentation. It critically examines the evolving dynamics in the dominance of traditional currencies, particularly the US dollar, in light of the emergent roles of the euro and the yuan, contextualised by global financial interdependencies and rapid advancements in digital technology. The study underscores the traditional criteria for an international currency – including economic stability, openness to trade and capital, and the depth and liquidity of financial markets – and supplementsthese with the contemporary necessity for institutional robustness. A thorough literature review reveals vulnerabilities within the global banking system exposed by recent stress tests, highlighting the fragility of banking liquidity. It also examines the impacts of geopolitical tensions and rapid technological transformations, such as the effect of social media on financial markets and the swift movement of capital. The discussion extends to the implications of geopolitical fragmentation on global liquidity and economic stability, emphasising the critical need for robust preventive measures and a regulatory framework adaptable to evolving financial threats. The core findings of this research emphasise that effective regulatory reforms aimed at enhancing financial stability could alleviate the volatility of capital flows and diminish systemic risks, thereby reinforcing the status of certain currencies as international reserves. The paper posits that for a currency to qualify as an international reserve, it must possess assets that ensure value stability and exhibit minimal price impact during financial disruptions. Methodologically, this study employs a blend of theoretical and empirical approaches, merging quantitative and qualitative analyses to address its research objectives comprehensively. Given the current global financial uncertainties and shifts in the international currency arena, this paper is crucial for policymakers, financial analysts, and academic researchers engaged in the discourse of international finance.
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