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The Asymmetric Effect of Diffusion Processes: Risk Sharing and Contagion

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  • Mauro Gallegati
  • Bruce Greenwald
  • Matteo Richiardi
  • Joseph Stiglitz

Abstract

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.

Suggested Citation

  • Mauro Gallegati & Bruce Greenwald & Matteo Richiardi & Joseph Stiglitz, 2007. "The Asymmetric Effect of Diffusion Processes: Risk Sharing and Contagion," LABORatorio R. Revelli Working Papers Series 71, LABORatorio R. Revelli, Centre for Employment Studies.
  • Handle: RePEc:cca:wplabo:71
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    References listed on IDEAS

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    Cited by:

    1. Nuno Silva, 2010. "Inter-Sector Relations in the Portuguese Economy: an Application of Contingent," Economic Bulletin and Financial Stability Report Articles, Banco de Portugal, Economics and Research Department.
    2. Frank A.G. den Butter, 2011. "The Macroeconomics of the Credit Crisis: In Search of Externalities for Macro Prudential Supervision," Chapters,in: Institutions and Regulation for Economic Growth?, chapter 10 Edward Elgar Publishing.
    3. Mayer-Foulkes David A, 2010. "Long-Term Fundamentals of the 2008 Economic Crisis," Global Economy Journal, De Gruyter, vol. 9(4), pages 1-25, January.
    4. Joseph E. Stiglitz, 2013. "Stable Growth in an Era of Crises; Learning from Economic Theory and History," Ekonomi-tek - International Economics Journal, Turkish Economic Association, vol. 2(1), pages 1-39, January.
    5. Anna Ferragina & Fernanda Mazzotta, 2015. "Agglomeration economies in Italy: impact on heterogeneous firms’ exit in a multilevel framework," Economia e Politica Industriale: Journal of Industrial and Business Economics, Springer;Associazione Amici di Economia e Politica Industriale, vol. 42(4), pages 395-440, December.
    6. Roy, Saktinil & Kemme, David M., 2012. "Causes of banking crises: Deregulation, credit booms and asset bubbles, then and now," International Review of Economics & Finance, Elsevier, vol. 24(C), pages 270-294.
    7. Joseph E. Stiglitz, 2011. "Rethinking Macroeconomics: What Failed, And How To Repair It," Journal of the European Economic Association, European Economic Association, vol. 9(4), pages 591-645, August.
    8. Joseph E. Stiglitz, 2017. "Where Modern Macroeconomics Went Wrong," NBER Working Papers 23795, National Bureau of Economic Research, Inc.
    9. David Rooney & Tom Mandeville & Tim Kastelle, 2013. "Abstract Knowledge and Reified Financial Innovation: Building Wisdom and Ethics Into Financial Innovation Networks," Journal of Business Ethics, Springer, vol. 118(3), pages 447-459, December.
    10. Highfill Jannett, 2008. "The Economic Crisis as of December 2008: The Global Economy Journal Weighs In," Global Economy Journal, De Gruyter, vol. 8(4), pages 1-7, December.
    11. Soete, Luc, 2009. "Malthus' Revenge," MERIT Working Papers 030, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
    12. Giulio Cainelli & Sandro Montresor & Giuseppe Vittucci Marzetti, 2012. "Production and financial linkages in inter-firm networks: structural variety, risk-sharing and resilience," Journal of Evolutionary Economics, Springer, vol. 22(4), pages 711-734, September.
    13. Naude, Wim, 2009. "The Global Economic Crisis after One Year: Is a New Paradigm for Recovery in Developing Countries Emerging?," WIDER Working Papers UNU-WIDER UNU Policy Brie, World Institute for Development Economic Research (UNU-WIDER).
    14. Naude Wim, 2011. "Global Finance after the Crisis: Reform Imperatives and Vested Interests," Global Economy Journal, De Gruyter, vol. 11(2), pages 1-22, July.
    15. Shoham Amir & Pelzman Joseph, 2011. "A Review of the Crises," Global Economy Journal, De Gruyter, vol. 11(2), pages 1-19, July.
    16. Joseph E. Stiglitz, 2010. "Risk and Global Economic Architecture: Why Full Financial Integration May Be Undesirable," American Economic Review, American Economic Association, vol. 100(2), pages 388-392, May.
    17. Emiel F.M. Wubben (ed.), 2011. "Institutions and Regulation for Economic Growth?," Books, Edward Elgar Publishing, number 14256, April.
    18. Frank A.G. den Butter, 2011. "The Macroeconomics of the Credit Crisis: In Search of Externalities for Macro Prudential Supervision," Chapters,in: Institutions and Regulation for Economic Growth?, chapter 10 Edward Elgar Publishing.
    19. Joseph E. Stiglitz, 2015. "Towards a General Theory of Deep Downturns," NBER Working Papers 21444, National Bureau of Economic Research, Inc.
    20. Anna Maria Ferragina & Fernanda Mazzotta, 2014. "Agglomeration economies and global activities: impact on firm survival," ERSA conference papers ersa14p348, European Regional Science Association.
    21. Stiglitz Joseph E., 2010. "Contagion, Liberalization, and the Optimal Structure of Globalization," Journal of Globalization and Development, De Gruyter, vol. 1(2), pages 1-47, December.
    22. Joseph E Stiglitz & Mauro Gallegati, 2011. "Heterogeneous Interacting Agent Models for Understanding Monetary Economies," Eastern Economic Journal, Palgrave Macmillan;Eastern Economic Association, vol. 37(1), pages 6-12.

    More about this item

    Keywords

    Risk-sharing; Contagion; Networks.;

    JEL classification:

    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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