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Nonlinear stock prices adjustment in the G7 countries

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Author Info
Georges Prat () (EconomiX - CNRS : UMR7166 - Université de Paris X - Nanterre)
Fredj Jawadi

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Abstract

This paper aims to modeling stock prices adjustment dynamics toward their fundamentals. We used the class of Switching Transition Error Correction Models (STECM) and we showed that stock prices deviations toward fundamentals could be characterized by nonlinear adjustment process with mean reversion. First, according to Anderson (1997), De Grauwe and Grimaldi (2005) and Boswijk et al.(2006), we justify these nonlinearities by the presence of heterogeneous transaction costs, behavioural heterogeneity and the interaction between shareholders expectations. After, we present STECM specification. We apply this model to describe the G7 indexes adjustment dynamics toward their fundamentals. We showed that the G7 stock indexes adjustment is smooth and nonlinearly mean-reverting and that the convergence speeds vary according to the disequilibrium extent. Finally, using two indicators proposed by Peel and Taylor (2000), we determine phases of under- and overvaluation of stock prices and measure intensity of stock prices adjustment strengths.

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Paper provided by HAL in its series Working Papers with number halshs-00172896_v1.

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Date of creation: 18 Sep 2007
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Handle: RePEc:hal:wpaper:halshs-00172896_v1

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Related research
Keywords: Stock Prices; Heterogeneous Transaction Costs; Nonlinear Adjustment;

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  1. Lubos Pastor & Robert F. Stambaugh, . "The Equity Premium and Structural Breaks," Rodney L. White Center for Financial Research Working Papers 11-00, Wharton School Rodney L. White Center for Financial Research. [Downloadable!]
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  2. Summers, Lawrence H, 1986. " Does the Stock Market Rationally Reflect Fundamental Values?," Journal of Finance, American Finance Association, vol. 41(3), pages 591-601, July. [Downloadable!] (restricted)
  3. Stephen G. Cecchetti & Pok-sang Lam & Nelson C. Mark, 1990. "Mean Reversion in Equilibrium Asset Prices," NBER Working Papers 2762, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  4. 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.
  5. Barberis, Nicholas & Thaler, Richard, 2003. "A survey of behavioral finance," Handbook of the Economics of Finance, in: G.M. Constantinides & M. Harris & R. M. Stulz (ed.), Handbook of the Economics of Finance, edition 1, volume 1, chapter 18, pages 1053-1128 Elsevier. [Downloadable!] (restricted)
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  6. Eitrheim, Oyvind & Terasvirta, Timo, 1996. "Testing the adequacy of smooth transition autoregressive models," Journal of Econometrics, Elsevier, vol. 74(1), pages 59-75, September. [Downloadable!] (restricted)
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  7. John Y. Campbell & Robert J. Shiller, 2001. "Valuation Ratios and the Long-Run Stock Market Outlook: An Update," NBER Working Papers 8221, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  8. Fama, Eugene F. & French, Kenneth R., 1988. "Dividend yields and expected stock returns," Journal of Financial Economics, Elsevier, vol. 22(1), pages 3-25, October. [Downloadable!] (restricted)
  9. Poterba, James M. & Summers, Lawrence H., 1988. "Mean reversion in stock prices : Evidence and Implications," Journal of Financial Economics, Elsevier, vol. 22(1), pages 27-59, October. [Downloadable!] (restricted)
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  10. Black, Angela & Fraser, Patricia & Groenewold, Nicolaas, 2003. "U.S. stock prices and macroeconomic fundamentals," International Review of Economics & Finance, Elsevier, vol. 12(3), pages 345-367. [Downloadable!] (restricted)
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  11. Boswijk, H. Peter & Hommes, Cars H. & Manzan, Sebastiano, 2007. "Behavioral heterogeneity in stock prices," Journal of Economic Dynamics and Control, Elsevier, vol. 31(6), pages 1938-1970, June. [Downloadable!] (restricted)
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  12. Shiller, Robert J, 1981. "Do Stock Prices Move Too Much to be Justified by Subsequent Changes in Dividends?," American Economic Review, American Economic Association, vol. 71(3), pages 421-36, June. [Downloadable!] (restricted)
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  13. Peel, David & Sarno, Lucio & Taylor, Mark P, 2001. "Nonlinear Mean-Reversion in Real Exchange Rates: Towards a Solution to the Purchasing Power Parity Puzzles," CEPR Discussion Papers 2658, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  14. Anderson, Heather M, 1997. "Transaction Costs and Non-linear Adjustment towards Equilibrium in the US Treasury Bill Market," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 59(4), pages 465-84, November.
  15. Barberis, Nicholas & Shleifer, Andrei & Vishny, Robert, 1998. "A model of investor sentiment1," Journal of Financial Economics, Elsevier, vol. 49(3), pages 307-343, September. [Downloadable!] (restricted)
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  16. Shefrin, Hersh M. & Statman, Meir, 1984. "Explaining investor preference for cash dividends," Journal of Financial Economics, Elsevier, vol. 13(2), pages 253-282, June. [Downloadable!] (restricted)
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