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Correlation Analysis of Financial Contagion: What One Should Know before Running a Test

  • Giancarlo Corsetti

    ()

    (Universit� di Roma III, Yale University and CEPR)

  • Marcello Pericoli

    ()

    (Banca d'Italia)

  • Massimo Sbracia

    ()

    (Banca d'Italia)

This paper presents a general test of contagion in financial markets based on bivariate correlation analysis � a test that can be interpreted as an extension of the normal correlation theorem. Contagion is defined as a structural break in the data generating process of rates of return. Using a factor model of returns, our theoretical framework nests leading contributions in the literature as special cases. We show that the tests proposed in the literature are conditional on a specific yet arbitrary assumption about the variance of country specific shocks. Using the Hong Kong stock market crisis in October 1997 as a representative case study, our results suggest that, for a number of pairs of country stock markets, the hypothesis of 'no contagion' can be rejected only if the variance of country specific shocks is set to levels that are not consistent with the evidence.

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Paper provided by Bank of Italy, Economic Research and International Relations Area in its series Temi di discussione (Economic working papers) with number 408.

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Date of creation: Jun 2001
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Handle: RePEc:bdi:wptemi:td_408_01
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  1. Michelacci, C. & Zaffaroni, P., 2000. "(Fractional) Beta Convergence," Papers 383, Banca Italia - Servizio di Studi.
  2. Guillermo A. Calvo & Enrique G. Mendoza, 1999. "Regional Contagion and the Globalization of Securities Markets," NBER Working Papers 7153, National Bureau of Economic Research, Inc.
  3. Graciela L. Kaminsky & Sergio L. Schmukler, 1999. "What triggers market jitters: a chronicle of the Asian crisis," International Finance Discussion Papers 634, Board of Governors of the Federal Reserve System (U.S.).
  4. Sebastian Edwards, 1998. "Interest Rate Volatility, Capital Controls, and Contagion," NBER Working Papers 6756, National Bureau of Economic Research, Inc.
  5. Corsetti, G. & Pesenti, P. & Roubini, N., 1998. "What Caused the Asian Currency and Financial Crisis?," Papers 343, Banca Italia - Servizio di Studi.
  6. Jeanne, Olivier & Masson, Paul R, 1998. "Currency Crises, Sunspots and Markov-Switching Regimes," CEPR Discussion Papers 1990, C.E.P.R. Discussion Papers.
  7. T. Todd Smith & Garry J. Schinasi, 1999. "Portfolio Diversification, Leverage, and Financial Contagion," IMF Working Papers 99/136, International Monetary Fund.
  8. Michael D. Bordo & Antu P. Murshid, 2000. "Are Financial Crises Becoming Increasingly More Contagious? What is the Historical Evidence on Contagion?," NBER Working Papers 7900, National Bureau of Economic Research, Inc.
  9. Eichengreen, Barry & Rose, Andrew K & Wyplosz, Charles, 1996. "Contagious Currency Crises," CEPR Discussion Papers 1453, C.E.P.R. Discussion Papers.
  10. Kristin Forbes & Roberto Rigobon, 1999. "No Contagion, Only Interdependence: Measuring Stock Market Co-movements," NBER Working Papers 7267, National Bureau of Economic Research, Inc.
  11. Kaminsky, Graciela L. & Reinhart, Carmen M., 2000. "On crises, contagion, and confusion," Journal of International Economics, Elsevier, vol. 51(1), pages 145-168, June.
  12. Ranil Salgado & Luca Antonio Ricci & Francesco Caramazza, 2000. "Trade and Financial Contagion in Currency Crises," IMF Working Papers 00/55, International Monetary Fund.
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