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A Prism into the PPP Puzzles: The Micro-foundations of Big Mac Real Exchange Rates

  • David C. Parsley
  • Shang-Jin Wei

The real exchange rate (RER) has been called the single most important price, yet its behavior exhibits several puzzles. In this project, we use Big Mac prices as a unique prism to study the movement of real exchange rates. Part of our innovation is to match these prices to the prices of individual ingredients. There are a number of advantages associated with our approach. First, unlike the CPI RER, we can measure the Big Mac RER in levels. Second, unlike the CPI RER, for which the attribution to tradable and non-tradable components involves assumptions on the weights and the functional form, we (almost) know the exact composition of a Big Mac, and can estimate the tradable and non-tradable components relatively precisely. Third, we can study the dynamics of the RER in a setting free of: the product-aggregation bias, the temporal aggregation bias, and the bias generated by non-compatible consumption baskets across countries. Fourth that Engel's result that deviations from the law of one price are sole explanation for RER movements does not hold generally. We offer some evidence that departure from the Engel effect can be systematically linked to economic factors.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 10074.

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Date of creation: Nov 2003
Date of revision:
Publication status: published as DavidC. Parsley & Shang-Jin Wei, 2007. "A Prism into the PPP Puzzles: The Micro-Foundations of Big Mac Real Exchange Rates," Economic Journal, Royal Economic Society, vol. 117(523), pages 1336-1356, October.
Handle: RePEc:nbr:nberwo:10074
Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
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  1. Imbs, Jean & Mumtaz, Haroon & Ravn, Morten O & Rey, Hélène, 2003. "PPP Strikes Back: Aggregation and the Real Exchange Rate," CEPR Discussion Papers 3715, C.E.P.R. Discussion Papers.
  2. Puumanen, Kari, 1989. " Real Exchange Rates and Macroeconomics: A Selective Survey," Scandinavian Journal of Economics, Wiley Blackwell, vol. 91(2), pages 433-34.
  3. Jeffrey A. Frankel & Andrew K. Rose, 1995. "A Panel Project on Purchasing Power Parity: Mean Reversion Within and Between Countries," NBER Working Papers 5006, National Bureau of Economic Research, Inc.
  4. O'Connell, P. G. J., 1998. "Market frictions and real exchange rates1," Journal of International Money and Finance, Elsevier, vol. 17(1), pages 71-95, February.
  5. Sarno, Lucio & Taylor, Mark P. & Chowdhury, Ibrahim, 2004. "Nonlinear dynamics in deviations from the law of one price: a broad-based empirical study," Journal of International Money and Finance, Elsevier, vol. 23(1), pages 1-25, February.
  6. Kenneth A. Froot & Kenneth Rogoff, 1991. "The EMS, the EMU, and the Transition to a Common Currency," NBER Working Papers 3684, National Bureau of Economic Research, Inc.
  7. Mendoza, Enrique G., 2000. "On the Instability of Variance Decompositions of the Real Exchange Rate Across Exchange- Rate-Regimes: Evidence from Mexico and the United States," Working Papers 00-05, Duke University, Department of Economics.
  8. Taylor, Alan M, 2001. "Potential Pitfalls for the Purchasing-Power-Parity Puzzle? Sampling and Specification Biases in Mean-Reversion Tests of the Law of One Price," Econometrica, Econometric Society, vol. 69(2), pages 473-98, March.
  9. Ken Froot & Kenneth Rogoff, . "Perspectives on PPP and Long-Run Real Exchange Rates," Working Paper 32027, Harvard University OpenScholar.
  10. Xavier Sala-i-Martin, 1994. "Regional cohesion: Evidence and theories of regional growth and convergence," Economics Working Papers 104, Department of Economics and Business, Universitat Pompeu Fabra.
  11. Robert J. Barro, 1995. "Inflation and Economic Growth," NBER Working Papers 5326, National Bureau of Economic Research, Inc.
  12. David C. Parsley & Shang-Jin Wei, 1996. "Convergence to the Law of One Price Without Trade Barriers or Currency Fluctuations," NBER Working Papers 5654, National Bureau of Economic Research, Inc.
  13. Maurice Obstfeld & Kenneth S. Rogoff, 1996. "Foundations of International Macroeconomics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262150476, June.
  14. V. V Chari & Patrick J. Kehoe & Ellen R. McGrattan, 2002. "Can Sticky Price Models Generate Volatile and Persistent Real Exchange Rates?," Review of Economic Studies, Oxford University Press, vol. 69(3), pages 533-563.
  15. Arellano, Manuel & Bond, Stephen, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Wiley Blackwell, vol. 58(2), pages 277-97, April.
  16. Maurice Obstfeld & Kenneth Rogoff, 2000. "The Six Major Puzzles in International Macroeconomics: Is There a Common Cause?," NBER Working Papers 7777, National Bureau of Economic Research, Inc.
  17. Rudiger Dornbusch, 1988. "Real Exchange Rates and Macroeconomics: A Selective Survey," NBER Working Papers 2775, National Bureau of Economic Research, Inc.
  18. Sarno, Lucio & Taylor, Mark P, 2001. "Purchasing Power Parity and the Real Exchange Rate," CEPR Discussion Papers 2913, C.E.P.R. Discussion Papers.
  19. Click, Reid W., 1996. "Contrarian MacParity," Economics Letters, Elsevier, vol. 53(2), pages 209-212, November.
  20. Matthias Lutz, 2002. "Beyond Burgernomics and MacParity: Exchange Rate Forecasts Based on the Law of One Price," 10th International Conference on Panel Data, Berlin, July 5-6, 2002 D4-1, International Conferences on Panel Data.
  21. Engel, C., 1996. "Accounting for U.S. Real Exchange Rate Changes," Working Papers 96-02, University of Washington, Department of Economics.
  22. Pedroni, Peter, 1999. " Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(0), pages 653-70, Special I.
  23. Michael R. Pakko & Patricia S. Pollard, 1996. "For here or to go? Purchasing power parity and the Big Mac," Review, Federal Reserve Bank of St. Louis, issue Jan, pages 3-22.
  24. G. M. Grossman & K. Rogoff (ed.), 1995. "Handbook of International Economics," Handbook of International Economics, Elsevier, edition 1, volume 3, number 3, 00.
  25. Xavier Sala-i-Martin, 1995. "Transfers, social safety nets and economic growth," Economics Working Papers 139, Department of Economics and Business, Universitat Pompeu Fabra.
  26. O'Connell, Paul G. J. & Wei, Shang-Jin, 2002. ""The bigger they are, the harder they fall": Retail price differences across U.S. cities," Journal of International Economics, Elsevier, vol. 56(1), pages 21-53, January.
  27. Paul G. J. O'Connell & Shang-Jin Wei, 1997. ""The Bigger They Are, The Harder They Fall": How Price Differences Across U.S. Cities Are Arbitraged," NBER Working Papers 6089, National Bureau of Economic Research, Inc.
  28. Richard Arena, 2002. "Introduction," Revue d'économie politique, Dalloz, vol. 112(5), pages 627-633.
  29. Kenneth Rogoff, 1996. "The Purchasing Power Parity Puzzle," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 647-668, June.
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