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

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  • Parsley, David
  • Wei, Shang-Jin

Abstract

The real exchange rate has been called the single most important price in an economy, yet its behaviour 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 the approach. First, unlike the CPI real exchange rate, we can measure the Big Mac real exchange rate in levels in an economically meaningful way. Second, unlike the CPI real exchange rate, for which the attribution to tradable and non-tradable components involves assumptions on the weights and the functional form, we know (almost) 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 real exchange rate in a setting free of several biases inherent in examinations of aggregate CPI based real exchange rates. These biases – the product-aggregation bias (Imbs, Mumtaz, Ravn, and Rey, 2002), the temporal aggregation bias (Taylor, 2001), and the bias generated by non-compatible consumption baskets across countries – are candidate explanations for the puzzlingly slow mean reversion alluded to by Rogoff (1996). Finally, we show that Engel's result that deviations from the law of one price are sole explanation for real exchange rate movements does not hold generally. We offer some evidence that departure from the Engel effect can be systematically linked to economic factors.

Suggested Citation

  • Parsley, David & Wei, Shang-Jin, 2004. "A Prism into the PPP Puzzles: The Micro-Foundations of Big Mac Real Exchange Rates," CEPR Discussion Papers 4486, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:4486
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    1. Maurice Obstfeld & Kenneth Rogoff, 2001. "The Six Major Puzzles in International Macroeconomics: Is There a Common Cause?," NBER Chapters,in: NBER Macroeconomics Annual 2000, Volume 15, pages 339-412 National Bureau of Economic Research, Inc.
    2. Dornbusch, Rudiger, 1989. " Real Exchange Rates and Macroeconomics: A Selective Survey," Scandinavian Journal of Economics, Wiley Blackwell, vol. 91(2), pages 401-432.
    3. 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.
    4. Frankel, Jeffrey A. & Rose, Andrew K., 1996. "A panel project on purchasing power parity: Mean reversion within and between countries," Journal of International Economics, Elsevier, vol. 40(1-2), pages 209-224, February.
    5. Charles Engel, 1999. "Accounting for U.S. Real Exchange Rate Changes," Journal of Political Economy, University of Chicago Press, vol. 107(3), pages 507-538, June.
    6. Robert J. Barro, 2013. "Inflation and Economic Growth," Annals of Economics and Finance, Society for AEF, vol. 14(1), pages 121-144, May.
    7. Jean Imbs & Haroon Mumtaz & Morten O. Ravn & Hélène Rey, 2005. "PPP Strikes Back: Aggregation And the Real Exchange Rate," The Quarterly Journal of Economics, Oxford University Press, vol. 120(1), pages 1-43.
    8. Kenneth Rogoff, 1996. "The Purchasing Power Parity Puzzle," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 647-668, June.
    9. Sala-i-Martin, Xavier X., 1996. "Regional cohesion: Evidence and theories of regional growth and convergence," European Economic Review, Elsevier, vol. 40(6), pages 1325-1352, June.
    10. 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 473-498, March.
    11. Maurice Obstfeld & Kenneth S. Rogoff, 1996. "Foundations of International Macroeconomics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262150476, January.
    12. 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.
    13. Click, Reid W., 1996. "Contrarian MacParity," Economics Letters, Elsevier, vol. 53(2), pages 209-212, November.
    14. 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.
    15. Kenneth A. Froot & Kenneth Rogoff, 1991. "The EMS, the EMU, and the Transition to a Common Currency," NBER Chapters,in: NBER Macroeconomics Annual 1991, Volume 6, pages 269-328 National Bureau of Economic Research, Inc.
    16. 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.
    17. Lucio Sarno & Mark P. Taylor, 2002. "Purchasing Power Parity and the Real Exchange Rate," IMF Staff Papers, Palgrave Macmillan, vol. 49(1), pages 1-5.
    18. Enrique G. Mendoza, 2000. "On the Instability of Variance Decompositions of the Real Exchange Rate across Exchange-Rate-Regimes: Evidence from Mexico and the United States," NBER Working Papers 7768, National Bureau of Economic Research, Inc.
    19. Frank Dietrich & Hartmut Kliemt & Michael Imhoff, 2002. "Introduction," Homo Oeconomicus, Institute of SocioEconomics, vol. 19, pages 7-8.
    20. Xavier Sala-I-Martin, 1997. "Transfers, Social Safety Nets, and Economic Growth," IMF Staff Papers, Palgrave Macmillan, vol. 44(1), pages 81-102, March.
    21. Puumanen, Kari, 1989. " Real Exchange Rates and Macroeconomics: A Selective Survey," Scandinavian Journal of Economics, Wiley Blackwell, vol. 91(2), pages 433-434.
    22. David C. Parsley & Shang-Jin Wei, 1996. "Convergence to the Law of One Price Without Trade Barriers or Currency Fluctuations," The Quarterly Journal of Economics, Oxford University Press, vol. 111(4), pages 1211-1236.
    23. 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.
    24. Froot, Kenneth A. & Rogoff, Kenneth, 1995. "Perspectives on PPP and long-run real exchange rates," Handbook of International Economics,in: G. M. Grossman & K. Rogoff (ed.), Handbook of International Economics, edition 1, volume 3, chapter 32, pages 1647-1688 Elsevier.
    25. 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.
    26. 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.
    27. G. M. Grossman & K. Rogoff (ed.), 1995. "Handbook of International Economics," Handbook of International Economics, Elsevier, edition 1, volume 3, number 3.
    28. Manuel Arellano & Stephen Bond, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Oxford University Press, vol. 58(2), pages 277-297.
    29. 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 653-670, Special I.
    30. Richard Arena, 2002. "Introduction," Revue d'économie politique, Dalloz, vol. 112(5), pages 627-633.
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    More about this item

    Keywords

    beta-convergence; real exchange rate decompositions; real exchange rates; sigma-convergence; TAR models;

    JEL classification:

    • F31 - International Economics - - International Finance - - - Foreign Exchange

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