NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Foreign Exchange Intervention Redux

Roberto Chang

NBER Working Paper No. 24463
Issued in March 2018
NBER Program(s):The International Finance and Macroeconomics Program, The Monetary Economics Program

Received wisdom posits that sterilized foreign exchange intervention can be effective by altering the currency composition of assets held by the public. This paper proposes an alternative channel: sterilized intervention may (or may not) have real effects because it changes the net credit position of the central bank vis a vis financial intermediaries, thereby affecting external debt limits. This argument is developed in the context of an open economy model with domestic banks subject to occasionally binding collateral constraints. Intervention has real effects if and only if it occurs when the constraints bind; at such times, a sterilized sale of official reserves relaxes the constraints by reducing the central bank's debt to domestic banks, freeing resources for the latter to increase the supply of credit to domestic agents. The analysis yields several noteworthy implications for intervention policy, official reserves accumulation, and the interaction between intervention and monetary policy.

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Document Object Identifier (DOI): 10.3386/w24463

 
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