PPP rules, macroeconomic (In)stability and learning
AbstractGovernments in emerging economies have pursued real exchange rate targeting through Purchasing Power Parity (PPP) rules that link the nominal depreciation rate to either the deviation of the real exchange rate from its long run level or to the difference between the domestic and the foreign CPI-inflation rates. In this paper we disentangle the conditions under which these rules may lead to endogenous fluctuations due to self-fulfilling expectations in a small open economy that faces nominal rigidities. We find that besides the specification of the rule, structural parameters such as the share of traded goods (that measures the degree of openness of the economy) and the degrees of imperfect competition and price stickiness in the non-traded sector play a crucial role in the determinacy of equilibrium. To evaluate the relevance of the real (in)determinacy results we pursue a learn ability (E-stability) analysis for the aforementioned PPP rules. We show that for rules that guarantee a unique equilibrium, the fundamental solution that represents this equilibrium is learnable in the E-stability sense. Similarly we show that for PPP rules that open the possibility of sunspot equilibria, a common factor representation that describes these equilibria is also E-stable. In this sense sunspot equilibria and therefore aggregate instability are more likely to occur due to PPP rules than previously recognized.
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Bibliographic InfoPaper provided by Board of Governors of the Federal Reserve System (U.S.) in its series International Finance Discussion Papers with number 814.
Date of creation: 2004
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- Carlos A. VÃ©gh Gramont & Guillermo Calvo & Carmen Reinhart, 1994.
"Targeting the Real Exchange Rate: Theory and Evidence,"
IMF Working Papers
94/22, International Monetary Fund.
- Calvo, Guillermo A. & Reinhart, Carmen M. & Vegh, Carlos A., 1995. "Targeting the real exchange rate: theory and evidence," Journal of Development Economics, Elsevier, vol. 47(1), pages 97-133, June.
- Reinhart, Carmen & Calvo, Guillermo & Vegh, Carlos, 1994. "Targeting the real exchange rate: Theory and evidence," MPRA Paper 13412, University Library of Munich, Germany.
- Rotemberg, Julio J, 1982. "Sticky Prices in the United States," Journal of Political Economy, University of Chicago Press, vol. 90(6), pages 1187-1211, December.
- Stephanie Schmitt-Grohe & Martin Uribe, 2001.
"Stabilization policy and the costs of dollarization,"
Federal Reserve Bank of Cleveland, pages 482-517.
- Schmitt-Grohe, Stephanie & Uribe, Martin, 2001. "Stabilization Policy and the Costs of Dollarization," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 33(2), pages 482-509, May.
- Stephanie Schmitt-Grohe & Martin Uribe, 2000. "Stabilization Policy and the Costs of Dollarization," Departmental Working Papers 200006, Rutgers University, Department of Economics.
- Marcet, Albert & Sargent, Thomas J., 1989. "Convergence of least squares learning mechanisms in self-referential linear stochastic models," Journal of Economic Theory, Elsevier, vol. 48(2), pages 337-368, August.
- Kaushik Mitra & James Bullard, .
"Learning About Monetary Policy Rules,"
00/41, Department of Economics, University of York.
- Dupor, Bill, 2001.
"Investment and Interest Rate Policy,"
Journal of Economic Theory,
Elsevier, vol. 98(1), pages 85-113, May.
- Bill Dupor, 2000. "Investment and Interest Rate Policy," Econometric Society World Congress 2000 Contributed Papers 0007, Econometric Society.
- John B. Taylor, 1999. "Monetary Policy Rules," NBER Books, National Bureau of Economic Research, Inc, number tayl99-1.
- Carlstrom, Charles T. & Fuerst, Timothy S., 2001.
"Timing and real indeterminacy in monetary models,"
Journal of Monetary Economics,
Elsevier, vol. 47(2), pages 285-298, April.
- Richard Clarida & Jordi Gali & Mark Gertler, 1998.
"Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory,"
NBER Working Papers
6442, National Bureau of Economic Research, Inc.
- Richard Clarida & Jordi Galí & Mark Gertler, 2000. "Monetary Policy Rules And Macroeconomic Stability: Evidence And Some Theory," The Quarterly Journal of Economics, MIT Press, vol. 115(1), pages 147-180, February.
- Clarida, R. & Gali, J. & Gertler, M., 1998. "Monetary Policy Rules and Macroeconomic Stability: Evidence and some Theory," Working Papers 98-01, C.V. Starr Center for Applied Economics, New York University.
- Clarida, Richard & Galí, Jordi & Gertler, Mark, 1998. "Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory," CEPR Discussion Papers 1908, C.E.P.R. Discussion Papers.
- Richard Clarida & Jordi Galí & Mark Gertler, 1997. "Monetary policy rules and macroeconomic stability: Evidence and some theory," Economics Working Papers 350, Department of Economics and Business, Universitat Pompeu Fabra, revised May 1999.
- FFF1Alexander A. NNN1Weinreb, 2003. "Change and instability," Demographic Research Special Collections, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 1(12), pages 373-396, September.
- Jordi Galí & Tommaso Monacelli, 2004.
"Monetary policy and exchange rate volatility in a small open economy,"
Economics Working Papers
835, Department of Economics and Business, Universitat Pompeu Fabra.
- Galí, Jordi & Monacelli, Tommaso, 2002. "Monetary Policy and Exchange Rate Volatility in a Small Open Economy," CEPR Discussion Papers 3346, C.E.P.R. Discussion Papers.
- Jordi Gali & Tommaso Monacelli, 2002. "Monetary Policy and Exchange Rate Volatility in a Small Open Economy," NBER Working Papers 8905, National Bureau of Economic Research, Inc.
- Bruce Preston, 2005.
"Learning about Monetary Policy Rules when Long-Horizon Expectations Matter,"
International Journal of Central Banking,
International Journal of Central Banking, vol. 1(2), September.
- Bruce Preston, 2003. "Learning about monetary policy rules when long-horizon expectations matter," Working Paper 2003-18, Federal Reserve Bank of Atlanta.
- Preston, Bruce, 2005. "Learning about Monetary Policy Rules when Long-Horizon Expectations Matter," MPRA Paper 830, University Library of Munich, Germany.
- Julio J. Rotemberg & Michael Woodford, 1999.
"Interest Rate Rules in an Estimated Sticky Price Model,"
in: Monetary Policy Rules, pages 57-126
National Bureau of Economic Research, Inc.
- Julio J. Rotemberg & Michael Woodford, 1998. "Interest-Rate Rules in an Estimated Sticky Price Model," NBER Working Papers 6618, National Bureau of Economic Research, Inc.
- Martin Uribe, 1995.
"Real exchange rate targeting and macroeconomic instability,"
International Finance Discussion Papers
505, Board of Governors of the Federal Reserve System (U.S.).
- Uribe, Martin, 2003. "Real exchange rate targeting and macroeconomic instability," Journal of International Economics, Elsevier, vol. 59(1), pages 137-159, January.
- Martin Uribe, 2002. "Real Exchange Rate Targeting and Macroeconomic Instability," NBER Working Papers 9294, National Bureau of Economic Research, Inc.
- Ali Dib, 2001.
"An Estimated Canadian DSGE Model with Nominal and Real Rigidities,"
01-26, Bank of Canada.
- Ali Dib, 2003. "An estimated Canadian DSGE model with nominal and real rigidities," Canadian Journal of Economics, Canadian Economics Association, vol. 36(4), pages 949-972, November.
- Evans, George & Honkapohja, Seppo, 1986. "A Complete Characterization of ARMA Solutions to Linear Rational Expectations Models," Review of Economic Studies, Wiley Blackwell, vol. 53(2), pages 227-39, April.
- Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-11, July.
- Evans, George W. & Honkapohja, Seppo, 1999. "Learning dynamics," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 7, pages 449-542 Elsevier.
- Evans, George W & Honkapohja, Seppo, 1992. "On the Robustness of Bubbles in Linear RE Models," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 33(1), pages 1-14, February.
- Richard Clarida & Jordi Gali & Mark Gertler, 2001. "Optimal Monetary Policy in Open versus Closed Economies: An Integrated Approach," American Economic Review, American Economic Association, vol. 91(2), pages 248-252, May.
- James B. Bullard & Eric Schaling, 2006.
"Monetary policy, determinacy, and learnability in a two-block world economy,"
2006-038, Federal Reserve Bank of St. Louis.
- James Bullard & Eric Schaling, 2009. "Monetary Policy, Determinacy, and Learnability in a Two-Block World Economy," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(8), pages 1585-1612, December.
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