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A Resolution of the Purchasing Power Parity Puzzle: Imperfect Knowledge and Long Swings

  • Roman Frydman

    (New York University)

  • Michael D. Goldberg

    (University of New Hampshire)

  • Søren Johansen

    (Department of Economics, University of Copenhagen)

  • Katarina Juselius

    (Department of Economics, University of Copenhagen)

Asset prices undergo long swings that revolve around benchmark levels. In currency markets, fluctuations involve real exchange rates that are highly persistent and that move in near-parallel fashion with nominal rates. The inability to explain these two regularities with one model has been called the "Purchasing Power Parity puzzle". In this paper, we trace the puzzle to exchange rate modelers' use of the "Rational Expectations Hypothesis". We show that once imperfect knowledge is recognized, a monetary model is able to account for the puzzle, as well as other salient features of the data, including the long-swings behavior of exchange rates.

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Paper provided by University of Copenhagen. Department of Economics in its series Discussion Papers with number 08-31.

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Length: 32 pages
Date of creation: Dec 2008
Date of revision:
Handle: RePEc:kud:kuiedp:0831
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  1. Nicholas BARBERIS & Ming HUANG & Tano SANTOS, 2000. "Prospect Theory and Asset Prices," FAME Research Paper Series rp16, International Center for Financial Asset Management and Engineering.
  2. 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.
  3. Maurice Obstfeld & Kenneth Rogoff, 1999. "New Directions for Stochastic Open Economy Models," NBER Working Papers 7313, National Bureau of Economic Research, Inc.
  4. Rahbek, Anders & Christian Kongsted, Hans & Jorgensen, Clara, 1999. "Trend stationarity in the I(2) cointegration model," Journal of Econometrics, Elsevier, vol. 90(2), pages 265-289, June.
  5. Cheung, Yin-Wong & Lai, Kon S. & Bergman, Michael, 2004. "Dissecting the PPP puzzle: the unconventional roles of nominal exchange rate and price adjustments," Journal of International Economics, Elsevier, vol. 64(1), pages 135-150, October.
  6. V.V. Chari & Patrick J. Kehoe & Ellen R. McGrattan, 1998. "Can sticky price models generate volatile and persistent real exchange rates?," Staff Report 223, Federal Reserve Bank of Minneapolis.
  7. Mussa, Michael, 1982. "A Model of Exchange Rate Dynamics," Journal of Political Economy, University of Chicago Press, vol. 90(1), pages 74-104, February.
  8. Maurice Obstfeld & Kenneth Rogoff, 1994. "Exchange Rate Dynamics Redux," NBER Working Papers 4693, National Bureau of Economic Research, Inc.
  9. Stephan Schulmeister, 2008. "Components of the profitability of technical currency trading," Applied Financial Economics, Taylor & Francis Journals, vol. 18(11), pages 917-930.
  10. Stephan Schulmeister, 2005. "The Interaction between Technical Currency Trading and Exchange Rate Fluctuations," WIFO Working Papers 264, WIFO.
  11. Christopher A. Sims, 1996. "Macroeconomics and Methodology," Journal of Economic Perspectives, American Economic Association, vol. 10(1), pages 105-120, Winter.
  12. Miller, Preston J. & Todd, Richard M., 1995. "Real effects of monetary policy in a world economy," Journal of Economic Dynamics and Control, Elsevier, vol. 19(1-2), pages 125-153.
  13. Engel, Charles & West, Kenneth D., 2006. "Taylor Rules and the Deutschmark: Dollar Real Exchange Rate," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 38(5), pages 1175-1194, August.
  14. Obstfeld, Maurice & Rogoff, Kenneth, 1984. "Exchange Rate Dynamics with Sluggish Prices under Alternative Price-Adjustment Rules," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 25(1), pages 159-74, February.
  15. Lars E.O. Svensson & Sweder van Wijnbergen, 1987. "Excess Capacity, Monopolistic Competition, and International Transmission of Monetary Disturbances," NBER Working Papers 2262, National Bureau of Economic Research, Inc.
  16. Barberis, Nicholas & Shleifer, Andrei & Vishny, Robert, 1998. "A model of investor sentiment," Journal of Financial Economics, Elsevier, vol. 49(3), pages 307-343, September.
  17. Murray, Christian J. & Papell, David H., 2002. "The purchasing power parity persistence paradigm," Journal of International Economics, Elsevier, vol. 56(1), pages 1-19, January.
  18. Charles Engel & James C. Morley, 2001. "The Adjustment of Prices and the Adjustment of the Exchange Rate," NBER Working Papers 8550, National Bureau of Economic Research, Inc.
  19. Robert Feenstra & Paul Bergin, 2003. "Pricing To Market, Staggered Contracts, And Real Exchange Rate Persistence," Working Papers 991, University of California, Davis, Department of Economics.
  20. Kollmann, Robert, 2001. "The exchange rate in a dynamic-optimizing business cycle model with nominal rigidities: a quantitative investigation," Journal of International Economics, Elsevier, vol. 55(2), pages 243-262, December.
  21. Jung, Yongseung, 2007. "Can the new open economy macroeconomic model explain exchange rate fluctuations?," Journal of International Economics, Elsevier, vol. 72(2), pages 381-408, July.
  22. Nielsen, Bent & Rahbek, Anders, 2000. " Similarity Issues in Cointegration Analysis," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 62(1), pages 5-22, February.
  23. Colin Hargreaves (ed.), 1992. "Macroeconomic Modelling Of The Long Run," Books, Edward Elgar, number 207, March.
  24. R. Mehra & E. Prescott, 2010. "The equity premium: a puzzle," Levine's Working Paper Archive 1401, David K. Levine.
  25. Paruolo, Paolo, 2000. "Asymptotic Efficiency Of The Two Stage Estimator In I (2) Systems," Econometric Theory, Cambridge University Press, vol. 16(04), pages 524-550, August.
  26. Epstein, Larry G & Zin, Stanley E, 1989. "Substitution, Risk Aversion, and the Temporal Behavior of Consumption and Asset Returns: A Theoretical Framework," Econometrica, Econometric Society, vol. 57(4), pages 937-69, July.
  27. Johansen, Soren, 1995. "Likelihood-Based Inference in Cointegrated Vector Autoregressive Models," OUP Catalogue, Oxford University Press, number 9780198774501.
  28. Stockman, Alan C, 1980. "A Theory of Exchange Rate Determination," Journal of Political Economy, University of Chicago Press, vol. 88(4), pages 673-98, August.
  29. Svensson, Lars E. O., 1985. "Currency prices, terms of trade, and interest rates: A general equilibrium asset-pricing cash-in-advance approach," Journal of International Economics, Elsevier, vol. 18(1-2), pages 17-41, February.
  30. G. Constantinides, 1990. "Habit formation: a resolution of the equity premium puzzle," Levine's Working Paper Archive 1397, David K. Levine.
  31. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  32. Lucas, Robert Jr., 1982. "Interest rates and currency prices in a two-country world," Journal of Monetary Economics, Elsevier, vol. 10(3), pages 335-359.
  33. Paruolo, Paolo, 2002. "Asymptotic Inference On The Moving Average Impact Matrix In Cointegrated I (2) Var Systems," Econometric Theory, Cambridge University Press, vol. 18(03), pages 673-690, June.
  34. Johansen, Soren, 2006. "Statistical analysis of hypotheses on the cointegrating relations in the I(2) model," Journal of Econometrics, Elsevier, vol. 132(1), pages 81-115, May.
  35. Amos Tversky & Daniel Kahneman, 1979. "Prospect Theory: An Analysis of Decision under Risk," Levine's Working Paper Archive 7656, David K. Levine.
  36. Kenneth Rogoff, 2008. "Comment on "Exchange Rate Models Are Not As Bad As You Think"," NBER Chapters, in: NBER Macroeconomics Annual 2007, Volume 22, pages 443-452 National Bureau of Economic Research, Inc.
  37. Benigno, Gianluca, 2004. "Real exchange rate persistence and monetary policy rules," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 473-502, April.
  38. Marquez, Jaime, 1991. "The Dynamics of Uncertainty or the Uncertainty of Dynamics: Stochastic J-Curves," The Review of Economics and Statistics, MIT Press, vol. 73(1), pages 125-33, February.
  39. Ellen E. Meade, 1988. "Exchange rates, adjustment, and the J-curve," Federal Reserve Bulletin, Board of Governors of the Federal Reserve System (U.S.), issue Oct, pages 633-644.
  40. Charles Engel & James D. Hamilton, 1989. "Long Swings in the Exchange Rate: Are they in the Data and Do Markets Know It?," NBER Working Papers 3165, National Bureau of Economic Research, Inc.
  41. Betts, Caroline & Devereux, Michael B., 1996. "The exchange rate in a model of pricing-to-market," European Economic Review, Elsevier, vol. 40(3-5), pages 1007-1021, April.
  42. Cardia, Emanuela, 1991. "The dynamics of a small open economy in response to monetary, fiscal, and productivity shocks," Journal of Monetary Economics, Elsevier, vol. 28(3), pages 411-434, December.
  43. Betts, Caroline & Devereux, Michael B., 2000. "Exchange rate dynamics in a model of pricing-to-market," Journal of International Economics, Elsevier, vol. 50(1), pages 215-244, February.
  44. Kongsted, Hans Christian, 2005. "Testing the nominal-to-real transformation," Journal of Econometrics, Elsevier, vol. 124(2), pages 205-225, February.
  45. Luca Fanelli & Emanuele Bacchiocchi, 2005. "Testing the purchasing power parity through I(2) cointegration techniques," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(6), pages 749-770.
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