Implications of Endogenous Group Formation for Efficient Risk-Sharing
This paper models the implications of endogenous group formation for efficient risk-sharing contracts in the dynamic limited commitment model. Endogenising group formation requires that any risk-sharing arrangement is not only stable with respect to individual deviations but also with respect to deviations by sub-groups. This requirement alters the central predictions of the dynamic limited commitment model for efficient bilateral risk-sharing. Firstly, consumption of constrained agents depends on the previous history of shocks and the interaction of the history of shocks with the current income realizations of other constrained agents. As a consequence, the efficient contract does not display amnesia. Secondly, the covariance between current consumption and past income can take on negative values. Based on the first result, we derive a formal test for the presence of endogenous group formation under limited commitment. In addition, we show how this test can be extended to distinguish a limited commitment/perfect information environment from a full commitment/imperfect information environment empirically.
|Date of creation:||01 Feb 2008|
|Date of revision:|
|Contact details of provider:|| Postal: Manor Rd. Building, Oxford, OX1 3UQ|
Web page: http://www.economics.ox.ac.uk/
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Joseph Farrell and Eric Maskin., 1987.
"Renegotiation in Repeated Games,"
Economics Working Papers
8759, University of California at Berkeley.
- 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 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.
- de Janvry, Alain & Sadoulet, Elisabeth & Winters, Paul C. & Murgai, Rinku, 2000.
"Localized and Incomplete Mutual Insurance,"
12905, University of New England, School of Economics.
- Attanasio, Orazio & Rios-Rull, Jose-Victor, 2000. "Consumption smoothing in island economies: Can public insurance reduce welfare?," European Economic Review, Elsevier, vol. 44(7), pages 1225-1258, June.
- Koeppl Thorsten V., 2006.
"Differentiability of the Efficient Frontier when Commitment to Risk Sharing is Limited,"
The B.E. Journal of Macroeconomics,
De Gruyter, vol. 6(1), pages 1-6, April.
- Thorsten Koeppl, 2004. "Differentiability of the Efficient Frontier when Commitment to Risk Sharing is Limited," Working Papers 1049, Queen's University, Department of Economics.
- Albert Marcet & Ramon Marimon, 2011.
CEP Discussion Papers
dp1055, Centre for Economic Performance, LSE.
- Albert Marcet & Ramon Marimon, 2011. "Recursive Contracts," Economics Working Papers ECO2011/15, European University Institute.
- Albert Marcet & Ramon Marimon, 1994. "Recursive contracts," Economics Working Papers 337, Department of Economics and Business, Universitat Pompeu Fabra, revised Oct 1998.
- Marcet, A. & Marimon, R., 1998. "Recursive Contracts," Economics Working Papers eco98/37, European University Institute.
- Albert Marcet and Ramon Marimon, 2011. "Recursive Contracts," Working Papers 552, Barcelona Graduate School of Economics.
- Narayana R. Kocherlakota, 1996.
"Implications of Efficient Risk Sharing without Commitment,"
Review of Economic Studies,
Oxford University Press, vol. 63(4), pages 595-609.
- Narayana Kocherlakota, 2010. "Implications of Efficient Risk Sharing Without Commitment," Levine's Working Paper Archive 2053, David K. Levine.
- Ellen R. McGrattan, 1993.
"Solving the stochastic growth model with a finite element method,"
164, Federal Reserve Bank of Minneapolis.
- McGrattan, Ellen R., 1996. "Solving the stochastic growth model with a finite element method," Journal of Economic Dynamics and Control, Elsevier, vol. 20(1-3), pages 19-42.
- Ethan Ligon & Jonathan P. Thomas & Tim Worrall, 2002. "Informal Insurance Arrangements with Limited Commitment: Theory and Evidence from Village Economies," Review of Economic Studies, Oxford University Press, vol. 69(1), pages 209-244.
- Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk-Sharing Arrangements," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 87-113.
- Maurizio Mazzocco, 2007. "Household Intertemporal Behaviour: A Collective Characterization and a Test of Commitment," Review of Economic Studies, Oxford University Press, vol. 74(3), pages 857-895.
- Judd, Kenneth L., 1992. "Projection methods for solving aggregate growth models," Journal of Economic Theory, Elsevier, vol. 58(2), pages 410-452, December.
- Dubois, Pierre, 2006.
"Heterogeneity of Preferences, Limited Commitment and Coalitions: Empirical Evidence on the Limits to Risk Sharing in Rural Pakistan,"
CEPR Discussion Papers
6004, C.E.P.R. Discussion Papers.
- Dubois, P., 2005. "Heterogeneity of preferences, limited commitment and coalitions : empirical evidence on the limits to risk sharing in rural Pakistan," Economics Working Paper Archive (Toulouse) 200505, French Institute for Agronomy Research (INRA), Economics Laboratory in Toulouse (ESR Toulouse).
- Dubois, Pierre, 2005. "Heterogeneity of Preferences, Limited Commitment and Coalitions Empirical Evidence on the Limits to Risk Sharing in Rural Pakistan," IDEI Working Papers 391, Institut d'Économie Industrielle (IDEI), Toulouse.
When requesting a correction, please mention this item's handle: RePEc:oxf:wpaper:387. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Monica Birds)
If references are entirely missing, you can add them using this form.