Foreign Exchange Intervention Rules for Central Banks: A Risk-based Framework

Foreign Exchange Intervention Rules for Central Banks: A Risk-based Framework
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Volume/Issue: Volume 2021 Issue 032
Publication date: February 2021
ISBN: 9781513569406
$18.00
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Topics covered in this book

This title contains information about the following subjects. Click on a subject if you would like to see other titles with the same subjects.

Banks and Banking , Finance , Foreign Exchange Interventions , Value at Risk , GARCH , WP , var FX intervention rule , intervention region , central bank intervention frequency , FXI risk mitigation , market participant

Summary

This paper presents a rule for foreign exchange interventions (FXI), designed to preserve financial stability in floating exchange rate arrangements. The FXI rule addresses a market failure: the absence of hedging solution for tail exchange rate risk in the market (i.e. high volatility). Market impairment or overshoot of exchange rate between two equilibria could generate high volatility and threaten financial stability due to unhedged exposure to exchange rate risk in the economy. The rule uses the concept of Value at Risk (VaR) to define FXI triggers. While it provides to the market a hedge against tail risk, the rule allows the exchange rate to smoothly adjust to new equilibria. In addition, the rule is budget neutral over the medium term, encourages a prudent risk management in the market, and is more resilient to speculative attacks than other rules, such as fixed-volatility rules. The empirical methodology is backtested on Banco Mexico’s FXIs data between 2008 and 2016.