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The Asymmetric Effect of Diffusion Processes: Risk Sharing and Contagion

Listed author(s):
  • Mauro Gallegati
  • Bruce Greenwald
  • Matteo Richiardi
  • Joseph Stiglitz

We provide a general characterization of diffusion processes, allowing to analyze both risk-sharing and contagion at the same time. We show that interdependencies are beneficial when the economic environment is favorable, and detrimental when the economic environment deteriorates. The risk of contagion increases the volatility of outcome and thus reduces the ability of the network to provide risk-sharing.

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File URL: http://www.laboratoriorevelli.it/_pdf/wp71.pdf
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Paper provided by LABORatorio R. Revelli, Centre for Employment Studies in its series LABORatorio R. Revelli Working Papers Series with number 71.

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Date of creation: 2007
Handle: RePEc:cca:wplabo:71
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Web page: http://www.laboratoriorevelli.it/
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  1. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, vol. 81(2), pages 337-356, December.
  2. Harry Markowitz, 1952. "Portfolio Selection," Journal of Finance, American Finance Association, vol. 7(1), pages 77-91, 03.
  3. Laura E. Kodres & Matthew Pritsker, 2002. "A Rational Expectations Model of Financial Contagion," Journal of Finance, American Finance Association, vol. 57(2), pages 769-799, 04.
  4. Dercon, Stefan & De Weerdt, Joachim & Bold, Tessa & Pankhurst, Alula, 2006. "Group-based funeral insurance in Ethiopia and Tanzania," World Development, Elsevier, vol. 34(4), pages 685-703, April.
  5. Franklin Allen & Douglas Gale, 2000. "Financial Contagion," Journal of Political Economy, University of Chicago Press, vol. 108(1), pages 1-33, February.
  6. Calvo, Guillermo A. & Mendoza, Enrique G., 2000. "Rational contagion and the globalization of securities markets," Journal of International Economics, Elsevier, vol. 51(1), pages 79-113, June.
  7. Iori, Giulia & Jafarey, Saqib & Padilla, Francisco G., 2006. "Systemic risk on the interbank market," Journal of Economic Behavior & Organization, Elsevier, vol. 61(4), pages 525-542, December.
  8. Goldstein, Itay & Pauzner, Ady, 2004. "Contagion of self-fulfilling financial crises due to diversification of investment portfolios," Journal of Economic Theory, Elsevier, vol. 119(1), pages 151-183, November.
  9. Garry J. Schinasi & R. Todd Smith, 2000. "Portfolio Diversification, Leverage, and Financial Contagion," IMF Staff Papers, Palgrave Macmillan, vol. 47(2), pages 1-1.
  10. Rodrigo Cifuentes & Hyun Song Shin & Gianluigi Ferrucci, 2005. "Liquidity Risk and Contagion," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 556-566, 04/05.
  11. Albert S. Kyle, 2001. "Contagion as a Wealth Effect," Journal of Finance, American Finance Association, vol. 56(4), pages 1401-1440, 08.
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