IDEAS home Printed from https://ideas.repec.org/a/eee/matsoc/v120y2022icp78-84.html

Risk allocation and financial intermediation

Author

Listed:
  • Goussebaïle, Arnaud

Abstract

The classic Arrow–Debreu framework requires a very large number of specific securities to reach Pareto optimality. The present paper shows that financial intermediation can play an important role in maintaining a more parsimonious market framework while still obtaining Pareto optimality. In the framework developed, the aggregate risk components of individual risks are exchanged through a highly reduced set of nonspecific securities, while the idiosyncratic risk components are insured through financial intermediation. Reaching Pareto optimality does not rest on a Law of Large Numbers approximation. The role of financial intermediation is complementary to the role of security derivatives and dynamic trading.

Suggested Citation

  • Goussebaïle, Arnaud, 2022. "Risk allocation and financial intermediation," Mathematical Social Sciences, Elsevier, vol. 120(C), pages 78-84.
    • Handle: RePEc:eee:matsoc:v:120:y:2022:i:c:p:78-84
    DOI: 10.1016/j.mathsocsci.2022.09.004
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0165489622000749
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.mathsocsci.2022.09.004?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Jonathan Heathcote & Kjetil Storesletten & Giovanni L. Violante, 2009. "Quantitative Macroeconomics with Heterogeneous Households," Annual Review of Economics, Annual Reviews, vol. 1(1), pages 319-354, May.
    2. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    3. Cass, David & Chichilnisky, Graciela & Wu, Ho-Mou, 1996. "Individual Risk and Mutual Insurance," Econometrica, Econometric Society, vol. 64(2), pages 333-341, March.
    4. Malinvaud, E, 1973. "Markets for an Exchange Economy with Individual Risks," Econometrica, Econometric Society, vol. 41(3), pages 383-410, May.
    5. Gorton, Gary & Winton, Andrew, 2003. "Financial intermediation," Handbook of the Economics of Finance, in: G.M. Constantinides & M. Harris & R. M. Stulz (ed.), Handbook of the Economics of Finance, edition 1, volume 1, chapter 8, pages 431-552, Elsevier.
    6. K. J. Arrow, 1964. "The Role of Securities in the Optimal Allocation of Risk-bearing," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 31(2), pages 91-96.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Athreya, Kartik B., 2014. "Big Ideas in Macroeconomics: A Nontechnical View," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262019736, December.
    2. José S. Penalva, 2003. "Implications of Dynamic Trading for Insurance Markets," Working Papers 83, Barcelona School of Economics.
    3. Paolo Siconolfi & Aldo Rustichini, 2012. "Economies with Observable Types," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 15(1), pages 57-71, January.
    4. HEIFETZ, Aviad & MINELLI, Enrico & POLEMARCHAKIS, Heracles, 1999. "Arbitrage and equilibrium with exchangeable risks," LIDAM Discussion Papers CORE 1999046, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    5. Alberto Bennardo & Salvatore Piccolo, 2005. "Competitive occupational choices with endogenous health risks," Levine's Working Paper Archive 784828000000000199, David K. Levine.
    6. Sjur Didrik Flåm & Elmar G. Wolfstetter, 2015. "Liability Insurance and Choice of Cars: A Large Game Approach," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 17(6), pages 943-963, December.
    7. Borglin, Anders & Flåm, Sjur Didrik, 2007. "Risk exchange as a market or production game," Working Papers in Economics 09/07, University of Bergen, Department of Economics.
    8. Marc H. Vatter, 2019. "OPEC’s Risk Premia and Volatility in Oil Prices," International Advances in Economic Research, Springer;International Atlantic Economic Society, vol. 25(2), pages 165-175, May.
    9. Flåm, Sjur Didrik, 2016. "Borch’s theorem, equal margins, and efficient allocation," Insurance: Mathematics and Economics, Elsevier, vol. 70(C), pages 162-168.
    10. Reus, Lorenzo & Munoz, Francisco D. & Moreno, Rodrigo, 2018. "Retail consumers and risk in centralized energy auctions for indexed long-term contracts in Chile," Energy Policy, Elsevier, vol. 114(C), pages 566-577.
    11. Laurens CHERCHYE & Ian CRAWFORD & Bram DE ROCK & Frederic VERMEULEN, 2011. "Aggregation without the aggravation? Nonparametric analysis of the representative consumer," Working Papers of Department of Economics, Leuven ces11.36, KU Leuven, Faculty of Economics and Business (FEB), Department of Economics, Leuven.
    12. Thibault Gajdos & Jean-Marc Tallon, 2002. "Fairness under Uncertainty," Economics Bulletin, AccessEcon, vol. 4(18), pages 1-7.
    13. Alberto Bennardo & Salvatore Piccolo, 2014. "Competitive Markets With Endogenous Health Risks," Journal of the European Economic Association, European Economic Association, vol. 12(3), pages 755-790, June.
    14. Bryan Ellickson & José Penalva-Zuasti, 1996. "Intertemporal Insurance," Center for Financial Institutions Working Papers 96-19, Wharton School Center for Financial Institutions, University of Pennsylvania.
    15. Mark A. Satterthwaite, 1977. "On Stockholder Unanimity Towards Changes in Production Plans," Discussion Papers 293, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    16. David M. Pennock & Michael P. Wellman, 2013. "Compact Securities Markets for Pareto Optimal Reallocation of Risk," Papers 1301.3886, arXiv.org.
    17. Biais, Bruno & Mariotti, Thomas & Moinas, Sophie & Pouget, Sébastien, 2017. "Asset Pricing and Risk Sharing in Complete Markets: An Experimental Investigation," TSE Working Papers 17-798, Toulouse School of Economics (TSE), revised Nov 2025.
    18. David Easley & Yoav Kolumbus & Eva Tardos, 2025. "Markets with Heterogeneous Agents: Dynamics and Survival of Bayesian vs. No-Regret Learners," Papers 2502.08597, arXiv.org, revised Jun 2025.
    19. Pratt, Stephen & Blake, Adam & Swann, Peter, 2013. "Dynamic general equilibrium model with uncertainty: Uncertainty regarding the future path of the economy," Economic Modelling, Elsevier, vol. 32(C), pages 429-439.
    20. CITANNA, Alessandro, 2000. "Moral hazard and linear contracts : Economies with idiosyncratic risks," HEC Research Papers Series 699, HEC Paris.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:matsoc:v:120:y:2022:i:c:p:78-84. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/inca/505565 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.