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Ppp Exchange Rate Rules, Macroeconomic (In)Stability, And Learning

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  • Luis-Felipe Zanna

Abstract

In order to maintain competitiveness, governments in developing economies seem to have pursued purchasing power parity (PPP) exchange rate rules, by adjusting the nominal devaluation rate in response to real exchange rate deviations from an intermediate target. This article shows that these rules are likely to induce macroeconomic instability, as they generate sunspot-driven fluctuations that are in fact learnable by agents in the Expectational-Stability sense. It finds that the existence of these "learnable sunspots" depends, among others, on open economy features, including the degree of openness and the degree of exchange rate pass-through to consumer's import prices. Copyright © (2009) by the Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.

Suggested Citation

  • Luis-Felipe Zanna, 2009. "Ppp Exchange Rate Rules, Macroeconomic (In)Stability, And Learning," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(4), pages 1103-1128, November.
    • Handle: RePEc:ier:iecrev:v:50:y:2009:i:4:p:1103-1128
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    References listed on IDEAS

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    Cited by:

    1. Araújo, Eurilton, 2016. "Determinacy and learnability of equilibrium in a small-open economy with sticky wages and prices," International Review of Economics & Finance, Elsevier, vol. 45(C), pages 16-32.
    2. Lin, Yo-Long, 2017. "Is the price path learnable under a fixed exchange rate regime?," International Review of Economics & Finance, Elsevier, vol. 48(C), pages 355-366.
    3. Mr. Marco Airaudo & Mr. Edward F Buffie & Luis-Felipe Zanna, 2016. "Inflation Targeting and Exchange Rate Management In Less Developed Countries," IMF Working Papers 2016/055, International Monetary Fund.
    4. Best, Gabriela, 2015. "A New Keynesian model with staggered price and wage setting under learning," Journal of Economic Dynamics and Control, Elsevier, vol. 57(C), pages 96-111.
    5. Fujisaki, Seiya, 2013. "Taylor rules and equilibrium determinacy in a two-country model with non-traded goods," Economic Modelling, Elsevier, vol. 35(C), pages 597-603.
    6. Airaudo, Marco, 2014. "Currency substitution, risk premia and the Taylor principle," Journal of Economic Dynamics and Control, Elsevier, vol. 48(C), pages 202-217.
    7. Airaudo, Marco, 2012. "Endogenous Dollarization, Sovereign Risk Premia and the Taylor Principle," School of Economics Working Paper Series 2012-11, LeBow College of Business, Drexel University.

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