External shocks and FX intervention policy in financially dollarized economies

IF 1.3 3区 经济学 Q3 ECONOMICS Journal of Macroeconomics Pub Date : 2025-03-05 DOI:10.1016/j.jmacro.2025.103672
Alex Carrasco , David Florián Hoyle
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Abstract

We examine the role of sterilized FX interventions as a monetary policy tool in response to external shocks for dollarized emerging market economies. Our model highlights an agency problem that limits banks’ ability to secure funds in both domestic and foreign currencies, with its intensity linked to currency mismatches in the banking sector. This leads to endogenous deviations from the standard UIP condition, resulting in a non-neutral FX intervention policy. Sterilized FX interventions stabilize financial conditions not only by stabilizing real exchange rates but also by acting as a balance sheet policy that directly influences credit supply. Our quantitative analysis shows that FX policy rules that counteract exchange rate deviations reduce volatility in interest rate spreads including UIP deviations, credit, investment, and output, leading to significant welfare improvements compared to a flexible exchange rate regime.
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来源期刊
CiteScore
2.50
自引率
7.10%
发文量
53
审稿时长
76 days
期刊介绍: Since its inception in 1979, the Journal of Macroeconomics has published theoretical and empirical articles that span the entire range of macroeconomics and monetary economics. More specifically, the editors encourage the submission of high quality papers that are concerned with the theoretical or empirical aspects of the following broadly defined topics: economic growth, economic fluctuations, the effects of monetary and fiscal policy, the political aspects of macroeconomics, exchange rate determination and other elements of open economy macroeconomics, the macroeconomics of income inequality, and macroeconomic forecasting.
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