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Interest Rates and the Exchange Rate: A Non-Monotonic Tale

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  • Viktoria Hnatkovska
  • Amartya Lahiri
  • Carlos A. Vegh

Abstract

What is the relationship between interest rates and the exchange rate? The empirical literature in this area has been inconclusive. We use an optimizing model of a small open economy to rationalize the mixed empirical findings. The model has three key margins. First, higher domestic interest rates raise the demand for deposits, and, hence, the money base. Second, firms need bank loans to finance the wage bill, which reduces output when domestic interest rates increase. Lastly, higher interest rates raise the government's fiscal burden, and, therefore, can lead to higher expected inflation. While the first effect tends to appreciate the currency, the remaining two effects tend to depreciate it. We then conduct policy experiments using a calibrated version of the model and show the central result of the paper: the relationship between interest rates and the exchange rate is non-monotonic. In particular, the exchange rate response depends on the size of the interest rate increase and on the initial level of the interest rate. Moreover, we also show that the model can replicate the heterogeneous responses of the exchange rate to interest rate innovations in several developing economies.

Suggested Citation

  • Viktoria Hnatkovska & Amartya Lahiri & Carlos A. Vegh, 2008. "Interest Rates and the Exchange Rate: A Non-Monotonic Tale," NBER Working Papers 13925, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:13925
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    Cited by:

    1. Marcelo Moura, 2010. "Testing the Taylor Model Predictability for Exchange Rates in Latin America," Open Economies Review, Springer, vol. 21(4), pages 547-564, September.
    2. Tito Cordella & Pablo M. Federico & Carlos A. Vegh & Guillermo Vuletin, 2014. "Reserve Requirements in the Brave New Macroprudential World," World Bank Publications, The World Bank, number 17584, April.
    3. Bratsiotis, George J. & Robinson, Wayne A., 2016. "Unit Total Costs: An Alternative Marginal Cost Proxy for Inflation Dynamics," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 1826-1849.
    4. Carlos A. Vegh & Guillermo Vuletin, 2013. "Overcoming the Fear of Free Falling: Monetary Policy Graduation in Emerging Markets," World Scientific Book Chapters,in: The Role of Central Banks in Financial Stability How Has It Changed?, chapter 6, pages 105-129 World Scientific Publishing Co. Pte. Ltd..
    5. Brahima Coulibaly, 2012. "Monetary policy in emerging market economies: what lessons from the global financial crisis?," International Finance Discussion Papers 1042, Board of Governors of the Federal Reserve System (U.S.).
    6. Nicholas Apergis & Arusha Cooray, 2013. "Forecasting fiscal variables: Only a strong growth plan can sustain the Greek austerity programs - Evidence from simultaneous and structural models," CAMA Working Papers 2013-25, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
    7. Lindenberg, Nannette & Westermann, Frank, 2012. "Common trends and common cycles among interest rates of the G7-countries," Journal of Macroeconomics, Elsevier, vol. 34(4), pages 1125-1140.
    8. Selim KAYHAN & Tayfur BAYAT & Ahmet UGUR, 2013. "Interest Rates and Exchange Rate Relationship in BRIC-T Countries," Ege Academic Review, Ege University Faculty of Economics and Administrative Sciences, vol. 13(2), pages 227-236.
    9. Javier Gómez Pineda, 2004. "Inflation Targeting, Sudden Stops and the Cost of Fear of Floating," Borradores de Economia 276, Banco de la Republica de Colombia.

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    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics

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