Risk-sharing and probabilistic network structure
This paper studies the impact of a probabilistic risk-sharing network structure on the optimal portfolio composition. We show that, even assuming identical agents, we are able to differentiate their optimal risk-choice once we assume the link-structure defining their relationship probabilistic. In particular, the final agent's portfolio composition is function of his location in the network. If we assume positive asset-correlation coefficients, the relative location of a player in the graph influences his risk-behaviour as much as those of his direct and indirect partners in a not-straightforward way. We analyse also two potential "centrality measures" able to select the key-player in the risk-sharing network. The findings may help to select the "central" agent in a risk-sharing community and to forecast the risk-exposure of the players. Finally, this paper may explain natural differences between identical rational agents' choices emerging in a probabilistic network setup.
|Date of creation:||Sep 2012|
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- Marcel Fafchamps & Susan Lund, .
"Risk Sharing Networks in Rural Philippines,"
97014, Stanford University, Department of Economics.
- Joseph E. Stiglitz, 2010.
"Risk and Global Economic Architecture: Why Full Financial Integration May Be Undesirable,"
NBER Working Papers
15718, National Bureau of Economic Research, Inc.
- 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 388-92, May.
- Battiston, Stefano & Delli Gatti, Domenico & Gallegati, Mauro & Greenwald, Bruce & Stiglitz, Joseph E., 2012.
"Liaisons dangereuses: Increasing connectivity, risk sharing, and systemic risk,"
Journal of Economic Dynamics and Control,
Elsevier, vol. 36(8), pages 1121-1141.
- Stefano Battiston & Domenico Delli Gatti & Mauro Gallegati & Bruce C. Greenwald & Joseph E. Stiglitz, 2009. "Liaisons Dangereuses: Increasing Connectivity, Risk Sharing, and Systemic Risk," NBER Working Papers 15611, National Bureau of Economic Research, Inc.
- De Weerdt, Joachim, 2002. "Risk-Sharing and Endogenous Network Formation," Working Paper Series UNU-WIDER Research Paper , World Institute for Development Economic Research (UNU-WIDER).
- Soramäki, Kimmo & Bech, Morten L. & Arnold, Jeffrey & Glass, Robert J. & Beyeler, Walter E., 2007.
"The topology of interbank payment flows,"
Physica A: Statistical Mechanics and its Applications,
Elsevier, vol. 379(1), pages 317-333.
- Gert Sabidussi, 1966. "The centrality index of a graph," Psychometrika, Springer, vol. 31(4), pages 581-603, December.
- 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.
- Stefan Dercon & Joachim de Weerdt, 2004. "Risk-Sharing Networks And Insurance Against Illness," Development and Comp Systems 0409019, EconWPA.
- Stefan Dercon & Joachim De Weerdt, 2002. "Risk-sharing Networks and Insurance against illness," Economics Series Working Papers WPS/2002-16, University of Oxford, Department of Economics.
- Stefan Dercon & Joachim De Weerdt, 2002. "Risk-sharing networks and insurance against illness," CSAE Working Paper Series 2002-16, Centre for the Study of African Economies, University of Oxford.
- de Janvry, Alain & Sadoulet, Elisabeth & Winters, Paul C. & Murgai, Rinku, 2000.
"Localized and Incomplete Mutual Insurance,"
12905, University of New England, School of Economics.
- Paolo Angelini & Andrea Nobili & Maria Cristina Picillo, 2009.
"The interbank market after August 2007: what has changed, and why?,"
Temi di discussione (Economic working papers)
731, Bank of Italy, Economic Research and International Relations Area.
- Paolo Angelini & Andrea Nobili & Cristina Picillo, 2011. "The Interbank Market after August 2007: What Has Changed, and Why?," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 43(5), pages 923-958, 08.
- Attila Ambrus & Markus Mobius & Adam Szeidl, 2007.
"Consumption Risk-sharing in Social Networks,"
Economics Working Papers
0079, Institute for Advanced Study, School of Social Science.
- Udry, Christopher, 1995. "Risk and Saving in Northern Nigeria," American Economic Review, American Economic Association, vol. 85(5), pages 1287-1300, December.
- Yann Bramoullé & Rachel Kranton & Martin D'Amours, 2010.
"Strategic Interaction and Networks,"
Cahiers de recherche
- Bramoullé, Yann & Kranton, Rachel, 2007.
Journal of Economic Behavior & Organization,
Elsevier, vol. 64(3-4), pages 275-294.
- Marcel Fafchamps & Flore Gubert, 2005.
"The Formation of Risk Sharing Networks,"
DT/2005/13, DIAL (Développement, Institutions et Mondialisation).
- Leo Katz, 1953. "A new status index derived from sociometric analysis," Psychometrika, Springer, vol. 18(1), pages 39-43, March.
- Andrea Galeotti & Sanjeev Goyal, 2010. "The Law of the Few," American Economic Review, American Economic Association, vol. 100(4), pages 1468-92, September.
- Silvia Gabrieli, 2011. "The microstructure of the money market before and after the financial crisis: a network perspective," CEIS Research Paper 181, Tor Vergata University, CEIS, revised 19 Jan 2011.
- repec:dau:papers:123456789/4392 is not listed on IDEAS
- Angelini, P. & Maresca, G. & Russo, D., 1996. "Systemic risk in the netting system," Journal of Banking & Finance, Elsevier, vol. 20(5), pages 853-868, June.
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