Persistent appreciations and overshooting: A normative analysis

Ricardo J. Caballero, Guido Lorenzoni

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Most economies experience episodes of persistent real exchange rate appreciations, when the question arises whether there is a need for intervention to protect the export sector. This paper presents a model of irreversible destruction where exchange rate intervention may be justified if the export sector is financially constrained. However, the criterion for intervention is not whether there are bankruptcies or not, but whether these can cause a large exchange rate overshooting once the factors behind the appreciation subside. The optimal policy includes ex-ante and ex-post interventions. Ex-ante (that is, during the appreciation phase) interventions have limited effects if the financial resources in the export sector are relatively abundant. In this case the bulk of the intervention takes place ex-post, and is concentrated in the first period of the depreciation phase. In contrast, if the financial constraint in the export sector is tight, the policy is shifted toward ex-ante intervention and it is optimal to lean against the appreciation.

Original languageEnglish (US)
Pages (from-to)1-47
Number of pages47
JournalIMF Economic Review
Issue number1
StatePublished - Apr 2014

ASJC Scopus subject areas

  • General Economics, Econometrics and Finance
  • General Business, Management and Accounting


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