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The Modern Theory of the LOP and PPP: Some Implications

  • Pippenger, John
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    What I call the modern theories of the law of one price and purchasing power parity extend those theories in two important ways: First by recognizing the nonlinearities caused by transaction costs and other impediments to trade and second by recognizing the importance of time in commodity arbitrage. This new approach, which has developed for the last two decades, raises questions about many widely accepted ideas. These ideas include the following: (1) The relevance of PPP. (2) Tests for cointegration and unit roots. (3) Relative versus absolute PPP. (4) Border effects. (5) Excessive volatility. (6) Large half lives for deviations from PPP. (7) The large increase in the volatility of exchange rates after the collapse of Bretton Woods.

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    Paper provided by Department of Economics, UC Santa Barbara in its series University of California at Santa Barbara, Economics Working Paper Series with number qt60z886n7.

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    Date of creation: 27 Jan 2004
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    Handle: RePEc:cdl:ucsbec:qt60z886n7
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    1. Richard Meese & Kenneth Rogoff, 1982. "The out-of-sample failure of empirical exchange rate models: sampling error or misspecification?," International Finance Discussion Papers 204, Board of Governors of the Federal Reserve System (U.S.).
    2. Jacob A. Frenkel & Morris Goldstein, 1989. "Exchange Rate Volatility and Misalignment: Evaluating Some Proposals for Reform," NBER Working Papers 2894, National Bureau of Economic Research, Inc.
    3. Benninga, Simon & Protopapadakis, Aris, 1988. "The equilibrium pricing of exchange rates and assets when trade takes time," Journal of International Money and Finance, Elsevier, vol. 7(2), pages 129-149, June.
    4. Lawrence H. Officer, 1982. "The Purchasing-Power-Parity Theory of Gerrard de Malynes," History of Political Economy, Duke University Press, vol. 14(2), pages 256-259, Summer.
    5. Leonardo Bartolini & Gordon M. Bodnar, 1996. "Are exchange rates excessively volatile? And what does "excessively volatile" mean, anyway?," Research Paper 9601, Federal Reserve Bank of New York.
    6. Kilian, Lutz & Taylor, Mark P, 2001. "Why is it so Difficult to Beat the Random Walk Forecast of Exchange Rates?," CEPR Discussion Papers 3024, C.E.P.R. Discussion Papers.
    7. Charles Engel & John H. Rogers, 2000. "Deviations from purchasing power parity: causes and welfare costs," International Finance Discussion Papers 666, Board of Governors of the Federal Reserve System (U.S.).
    8. Kenneth Rogoff, 1996. "The Purchasing Power Parity Puzzle," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 647-668, June.
    9. Maurice Obstfeld & Alan M. Taylor, 1997. "Nonlinear Aspects of Goods-Market Arbitrage and Adjustment: Heckscher's Commodity Points Revisited," NBER Working Papers 6053, National Bureau of Economic Research, Inc.
    10. Pippenger, John, 2003. "Modeling foreign exchange intervention: stock versus stock adjustment," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 13(2), pages 137-156, April.
    11. Protopapadakis, Aris & Stoll, Hans R, 1983. " Spot and Futures Prices and the Law of One Price," Journal of Finance, American Finance Association, vol. 38(5), pages 1431-55, December.
    12. Meese, Richard A. & Rogoff, Kenneth, 1983. "Empirical exchange rate models of the seventies : Do they fit out of sample?," Journal of International Economics, Elsevier, vol. 14(1-2), pages 3-24, February.
    13. Baum, Christopher F. & Barkoulas, John T. & Caglayan, Mustafa, 2001. "Nonlinear adjustment to purchasing power parity in the post-Bretton Woods era," Journal of International Money and Finance, Elsevier, vol. 20(3), pages 379-399, June.
    14. Michael, Panos & Nobay, A Robert & Peel, David A, 1997. "Transactions Costs and Nonlinear Adjustment in Real Exchange Rates: An Empirical Investigation," Journal of Political Economy, University of Chicago Press, vol. 105(4), pages 862-79, August.
    15. Bleaney, Michael, 1992. "Comparisons of Real Exchange Rate Volatility across Exchange Rate Systems," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 54(4), pages 557-65, November.
    16. 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.
    17. repec:cup:cbooks:9780521460477 is not listed on IDEAS
    18. Pippenger, Michael K., 1993. "Cointegration tests of purchasing power parity: the case of Swiss exchange rates," Journal of International Money and Finance, Elsevier, vol. 12(1), pages 46-61, February.
    19. Sercu, Piet & Uppal, Raman & Van Hulle, Cynthia, 1995. " The Exchange Rate in the Presence of Transaction Costs: Implications for Tests of Purchasing Power Parity," Journal of Finance, American Finance Association, vol. 50(4), pages 1309-19, September.
    20. Crownover, Collin & Pippenger, John & Steigerwald, Douglas G., 1996. "Testing for absolute purchasing power parity," Journal of International Money and Finance, Elsevier, vol. 15(5), pages 783-796, October.
    21. Parsley, David C. & Wei, Shang-Jin, 2001. "Explaining the border effect: the role of exchange rate variability, shipping costs, and geography," Journal of International Economics, Elsevier, vol. 55(1), pages 87-105, October.
    22. Pippenger, Michael K & Goering, Gregory E, 1993. "A Note on the Empirical Power of Unit Root Tests under Threshold Processes," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 55(4), pages 473-81, November.
    23. Dumas, Bernard, 1992. "Dynamic Equilibrium and the Real Exchange Rate in a Spatially Separated World," Review of Financial Studies, Society for Financial Studies, vol. 5(2), pages 153-80.
    24. Sarantis, Nicholas, 1999. "Modeling non-linearities in real effective exchange rates," Journal of International Money and Finance, Elsevier, vol. 18(1), pages 27-45, January.
    25. Michael, Panos & Nobay, A Robert & Peel, David, 1994. "Purchasing power parity yet again: evidence from spatially separated commodity markets," Journal of International Money and Finance, Elsevier, vol. 13(6), pages 637-657, December.
    26. 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.
    27. Krugman, Paul R., 1978. "Purchasing power parity and exchange rates : Another look at the evidence," Journal of International Economics, Elsevier, vol. 8(3), pages 397-407, August.
    28. A. Protopapadakis, Aris & R. Stoll, Hans, 1986. "The Law of One Price in international commodity markets: A reformulation and some formal tests," Journal of International Money and Finance, Elsevier, vol. 5(3), pages 335-360, September.
    29. Xu, Zhenhui, 2003. "Purchasing power parity, price indices, and exchange rate forcasts," Journal of International Money and Finance, Elsevier, vol. 22(1), pages 105-130, February.
    30. repec:cup:cbooks:9780521466004 is not listed on IDEAS
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