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How can financial constraints force a central bank to exit a currency peg? An application to the Swiss franc peg

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  • Pinter, Julien
  • Pourroy, Marc

Abstract

We analyze how financial constraints can weigh on a central bank’s decision to exit a temporary currency peg, such as the one put in place in Switzerland between 2011 and 2015. We show that negative equity or insolvency concerns can force a central bank to exit such a peg earlier than it would have done absent such concerns. We detail under which conditions such reasoning can apply for a traditional inflation-averse central bank. We then build an exchange market pressure model fitting with current peg reality to forecast both the central bank future bond holdings under a peg as well as its future losses. Applying our model to the Swiss franc peg, we show that negative equity concerns could have motivated the Swiss central bank early and puzzling peg exit in 2015, thereby providing a potential explanation for the “Frankenshock”. ECB QE policy appears as a potential key driver of this decision.

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  • Pinter, Julien & Pourroy, Marc, 2023. "How can financial constraints force a central bank to exit a currency peg? An application to the Swiss franc peg," Journal of Macroeconomics, Elsevier, vol. 75(C).
    • Handle: RePEc:eee:jmacro:v:75:y:2023:i:c:s0164070422000866
    DOI: 10.1016/j.jmacro.2022.103493
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    More about this item

    Keywords

    Swiss franc peg; Exchange rate regime; Exchange market pressure; Central bank solvency; Central bank capital;
    All these keywords.

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions

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