Monetary Policy Impacts on Currency Crises
Summary
Monetary policy plays a pivotal role in the genesis and resolution of currency crises. By adjusting interest rates, reserve requirements and liquidity provisions, central banks influence capital flows, exchange‐rate expectations and domestic financial conditions. An accommodative stance can bolster growth but may undermine confidence in a fixed or managed exchange‐rate regime, inviting speculative pressures. Conversely, abrupt tightening to defend a peg or stem capital flight can trigger credit contractions, exacerbate debt burdens and precipitate a crisis. Empirical research has underscored the interaction between policy regime credibility and the timing of interventions, showing that clear communication and gradual adjustment often mitigate the risk of sudden devaluations. In emerging markets, the interplay between external shocks, foreign‐currency‐denominated liabilities and monetary responses has proven especially critical: insufficient reserves or delayed rate hikes can catalyse self‐fulfilling runs, whereas excessive reliance on sterilised intervention may deplete policy buffers. Contemporary studies emphasise the need for integrated frameworks that link macroprudential tools, capital controls and monetary instruments to forestall destabilising speculative attacks and preserve macroeconomic stability on a global scale.
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Monetary Policy Impacts on Currency Crises publication trend
The graph below shows the total number of articles in monetary policy impacts on currency crises across all publications each year (not limited to Nature Index journals).
Technical terms
Currency crisis: A sudden loss of confidence in a currency leading to sharp depreciation or forced realignment of its exchange‐rate peg.
Speculative attack: Rapid, large‐scale selling of a domestic currency by investors anticipating a devaluation or abandonment of an exchange‐rate regime.
Exchange‐rate regime: The framework through which a central bank manages its currency’s value relative to others, ranging from fixed pegs to freely floating rates.
Cointegration analysis: A statistical technique for detecting long‐run equilibrium relationships between time‐series variables, such as interest rates and reserve levels.
Event study: An empirical method that assesses the impact of a discrete intervention or announcement on financial variables over a short time window.
References
- Neural Networks for Estimating Speculative Attacks Models. Entropy (2021).
- ANALYZING THE RELATIONSHIP BETWEEN INTEREST RATE AND EXTERNAL RESERVES IN NIGERIA: A COINTEGRATION APPROACH. The American Journal of Interdisciplinary Innovations and Research (2023).
- Efeitos das Intervenções Cambiais à vista na Taxa de Câmbio R$/US$ de 1999 a 2008: Um Estudo de Evento. Brazilian Review of Finance (2010).
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