International Currency Systems and Monetary Policy
Summary
International currency systems underpin global trade and finance through agreed frameworks that determine exchange rate regimes, reserve currency status and mechanisms for monetary cooperation. From the classical gold standard to the Bretton Woods system and the era of floating exchange rates, these arrangements have shaped the distribution of monetary sovereignty and the conduct of central banks worldwide. Reserve currencies—most prominently the US dollar—facilitate liquidity provision, influence interest-rate differentials and act as anchors for exchange-rate stability in many economies. Monetary policy choices, whether targeting inflation, stabilising the exchange rate or opening capital accounts, are constrained by the so-called policy trilemma, which dictates that only two of these objectives can be pursued simultaneously. In recent decades, financial globalisation and the rise of emerging-market economies have tested the resilience of established currency hierarchies, while digital technologies and new settlement infrastructures promise further transformation. The interplay between dominant currencies, emerging alternatives and central-bank interventions in foreign-exchange markets continues to shape credit conditions, cross-border capital flows and macroeconomic stability on a global scale.
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International Currency Systems and Monetary Policy publication trend
The graph below shows the total number of articles in international currency systems and monetary policy across all publications each year (not limited to Nature Index journals).
Technical terms
Reserve currency: A currency held in large quantities by central banks to support international transactions and intervene in foreign-exchange markets.
Currency internationalisation: The process by which a country’s currency is used globally for trade, investment and reserve holdings beyond its borders.
Special Drawing Rights (SDRs): An international reserve asset created by the IMF, representing a basket of major currencies and allocated to member countries.
Foreign-exchange swap lines: Reciprocal liquidity arrangements between central banks to provide short-term foreign currency funding and stabilise exchange markets.
References
- Reserve Currencies in an Evolving International Monetary System. Open Economies Review (2022).
- Digital RMB vs. Dollar Hegemony? Friendly Foes in China-US Currency Competition. Journal of Chinese Political Science (2023).
- Impact of RMB internationalization on China’s competitiveness in financial services trade based on the VAR model: Evidence from China-US. PLOS ONE (2024).
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