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Modeling Sterilized Interventions and Balance Sheet Effects of Monetary Policy in a New-Keynesian Framework
Author/Editor:Jaromir Benes ; Andrew Berg ; Rafael A Portillo ; David Vávra
Publication Date: January 14, 2013
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Modeling Sterilized Interventions and Balance Sheet Effects of Monetary Policy in a New-Keynesian Framework
Author/Editor:Jaromir Benes ; Andrew Berg ; Rafael A Portillo ; David Vávra
Publication Date: January 14, 2013
Abstract
We study a wide range of hybrid inflation-targeting (IT) and managed exchange rate regimes, analyzing their implications for inflation, output and the exchange rate in the presence of various domestic and external shocks.
To this end, we develop an open economy new-Keynesian model featuring sterilized interventions in the foreign exchange (FX) market as an additional central bank instrument operating alongside the Taylor rule, and affecting the economy through portfolio balance sheet effects in the financial sector.
We find that there can be advantages to combining IT with some degree of exchange rate management via FX interventions.
Unlike "pure" IT or exchange rate management via interest rates, FX interventions can help insulate the economy against certain shocks, especially shocks to international financial conditions.
However, managing the exchange rate through FX interventions may also hinder necessary exchange rate adjustments, e.g., in the presence of terms of trade shocks.
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I. INTRODUCTION
We present a strategy for modeling foreign exchange (FX) interventions in an otherwise standard Inflation Targeting (IT) NewâKeynesian dynamic general equilibrium model.
The strategy is useful for modeling hybrid IT regimes involving informal exchange rate corridors, pegged or crawling exchange rates, and managed floats.
Our strategy differs from other approaches that combine IT with a partial control over the exchange rate in that it uses the exchange rate (and interventions) as an instrument alongside the interest rate.
The general equilibrium setting incorporates the analysis of stocks and flows that is needed to capture the balance sheet effects of intervention policies. Our strategy can easily be extended to more complicated monetary policy frameworks with multiple instruments and objectives.
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Foreign exchange (FX) interventions have always been an important monetary policy instrument in emerging and developing economies.
Central banks operate in the FX market for many different reasons, including to achieve a desired level of FX reserves or to act as a market maker of last resort in case of a market disorder (e.g., as described in Gersl and Holub, 2006).
However, several surveys covering a large number of emerging markets (EM) countries also document a wide recourse to sterilized interventions for monetary policy purposes (BIS (2005) and IMF (2011a), among others).
Such interventions are the focus of this paper.
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çµæžç ç©¶ãVol.54 No.2 Apr. 2003
ãEffects of the Bank of Japanâs intervention on yen/dollar exchange rate volatilityã21 November 2004
Toshiaki Watanabe (a), Kimie Harada (b)
ãThe Effects of Japanese Foreign Exchange Intervention: GARCH Estimation and Change Point Detectionã
Eric Hillebrand Gunther Schnabl Discussion
Paper No.6 October 2003
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