IDEAS home Printed from https://ideas.repec.org/p/zbw/gdec10/11.html
   My bibliography  Save this paper

Contract Enforcement by the Gods

Author

Listed:
  • Schumacher, Heiner
  • Hadnes, Myriam

Abstract

We propose a theory that explains why rational agents start to believe in a causal relationship between unrelated events. Agents send and collect messages through a communication network. If they are convinced of a relationship between two events, they send messages confirming their belief with higher probability than messages contradicting it. The network aggregates this communication bias over individuals. Therefore, agents may find a strong relationship between unrelated events even if the communication bias is very small. We apply this model to an informal economy where the fear of punishment by supernatural forces prevents agents from cheating others.

Suggested Citation

  • Schumacher, Heiner & Hadnes, Myriam, 2010. "Contract Enforcement by the Gods," Proceedings of the German Development Economics Conference, Hannover 2010 11, Verein für Socialpolitik, Research Committee Development Economics.
  • Handle: RePEc:zbw:gdec10:11
    as

    Download full text from publisher

    File URL: https://www.econstor.eu/bitstream/10419/40013/1/273_hadnes.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Fudenberg, Drew & Levine, David, 1998. "Learning in games," European Economic Review, Elsevier, vol. 42(3-5), pages 631-639, May.
    2. Platteau, Jean-Philippe, 2009. "Institutional obstacles to African economic development: State, ethnicity, and custom," Journal of Economic Behavior & Organization, Elsevier, vol. 71(3), pages 669-689, September.
    3. Drew Fudenberg & David K. Levine, 2006. "Superstition and Rational Learning," American Economic Review, American Economic Association, vol. 96(3), pages 630-651, June.
    4. Venkatesh Bala & Sanjeev Goyal, 1998. "Learning from Neighbours," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 65(3), pages 595-621.
    5. Kohnert, Dirk, 1996. "Magic and witchcraft: Implications for democratization and poverty-alleviating aid in Africa," World Development, Elsevier, vol. 24(8), pages 1347-1355, August.
    6. Avinash Dixit, 2003. "Trade Expansion and Contract Enforcement," Journal of Political Economy, University of Chicago Press, vol. 111(6), pages 1293-1317, December.
    7. Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October.
    8. Marcel Fafchamps, 2006. "Spontaneous Markets, Networks, and Social Capital: Lessons from Africa," Economics Series Working Papers GPRG-WPS-058, University of Oxford, Department of Economics.
    9. Marcel Fafchamps, 2004. "Market Institutions in Sub-Saharan Africa: Theory and Evidence," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262062364, December.
    10. Anderson, Siwan & Baland, Jean-Marie & Moene, Karl Ove, 2009. "Enforcement in informal saving groups," Journal of Development Economics, Elsevier, vol. 90(1), pages 14-23, September.
    11. Ran Spiegler, 2006. "The Market for Quacks," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 73(4), pages 1113-1131.
    12. Peter M. DeMarzo & Dimitri Vayanos & Jeffrey Zwiebel, 2003. "Persuasion Bias, Social Influence, and Unidimensional Opinions," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(3), pages 909-968.
    13. Drew Fudenberg & David K Levine, 2008. "Learning-Theoretic Foundations for Equilibrium Analysis," Levine's Working Paper Archive 122247000000002317, David K. Levine.
    14. Ernst Fehr & Urs Fischbacher, "undated". "Third Party Punishment and Social Norms," IEW - Working Papers 106, Institute for Empirical Research in Economics - University of Zurich.
    15. Osborne, Martin J & Rubinstein, Ariel, 1998. "Games with Procedurally Rational Players," American Economic Review, American Economic Association, vol. 88(4), pages 834-847, September.
    16. Abhijit V. Banerjee, 1993. "The Economics of Rumours," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(2), pages 309-327.
    17. Jean-Philippe Platteau, 2009. "Institutional Obstacles to African Economic Development: State, Ethnicity, and Custom," Post-Print hal-00726664, HAL.
    18. Nathan Nunn & Leonard Wantchekon, 2011. "The Slave Trade and the Origins of Mistrust in Africa," American Economic Review, American Economic Association, vol. 101(7), pages 3221-3252, December.
    19. Helen Bernhard & Urs Fischbacher & Ernst Fehr, 2006. "Parochial altruism in humans," Nature, Nature, vol. 442(7105), pages 912-915, August.
    20. Kohnert, Dirk, 2007. "On the Renaissance of African Modes of Thought - The Example of the Belief in Magic and Witchcraft," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, pages 39-61.
    21. Drew Fudenberg & David K. Levine, 1998. "The Theory of Learning in Games," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061945, December.
    22. Simon Gachter & Ernst Fehr, 2000. "Cooperation and Punishment in Public Goods Experiments," American Economic Review, American Economic Association, vol. 90(4), pages 980-994, September.
    23. Greif, Avner, 1993. "Contract Enforceability and Economic Institutions in Early Trade: the Maghribi Traders' Coalition," American Economic Review, American Economic Association, vol. 83(3), pages 525-548, June.
    24. Edward Miguel, 2005. "Poverty and Witch Killing," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 72(4), pages 1153-1172.
    25. Michihiro Kandori, 1992. "Social Norms and Community Enforcement," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 59(1), pages 63-80.
    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. Bartoš, Vojtěch, 2021. "Seasonal scarcity and sharing norms," Journal of Economic Behavior & Organization, Elsevier, vol. 185(C), pages 303-316.
    2. Daron Acemoglu & Asuman Ozdaglar, 2011. "Opinion Dynamics and Learning in Social Networks," Dynamic Games and Applications, Springer, vol. 1(1), pages 3-49, March.
    3. Gershman, Boris, 2016. "Witchcraft beliefs and the erosion of social capital: Evidence from Sub-Saharan Africa and beyond," Journal of Development Economics, Elsevier, vol. 120(C), pages 182-208.
    4. Sanchez-Pages Santiago & Straub Stéphane, 2010. "The Emergence of Institutions," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 10(1), pages 1-38, September.
    5. Michel Grabisch & Agnieszka Rusinowska, 2020. "A Survey on Nonstrategic Models of Opinion Dynamics," Games, MDPI, vol. 11(4), pages 1-29, December.
    6. Yann Algan & Pierre Cahuc, 2014. "Trust, Well-Being and Growth: New Evidence and Policy Implications," Post-Print hal-01169659, HAL.
    7. Lippert, Steffen & Spagnolo, Giancarlo, 2011. "Networks of relations and Word-of-Mouth Communication," Games and Economic Behavior, Elsevier, vol. 72(1), pages 202-217, May.
    8. Ionel Popescu & Tushar Vaidya, 2019. "Averaging plus Learning Models and Their Asymptotics," Papers 1904.08131, arXiv.org, revised Jul 2023.
    9. Algan, Yann & Cahuc, Pierre, 2014. "Trust, Growth, and Well-Being: New Evidence and Policy Implications," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 2, chapter 2, pages 49-120, Elsevier.
    10. Attila Ambrus & Markus Mobius & Adam Szeidl, 2014. "Consumption Risk-Sharing in Social Networks," American Economic Review, American Economic Association, vol. 104(1), pages 149-182, January.
    11. Rohner, Dominic, 2011. "Reputation, group structure and social tensions," Journal of Development Economics, Elsevier, vol. 96(2), pages 188-199, November.
    12. Nik Stoop & Marijke Verpoorten, 2020. "Risk, Envy and Magic in the Artisanal Mining Sector of South Kivu, Democratic Republic of Congo," Development and Change, International Institute of Social Studies, vol. 51(5), pages 1199-1224, September.
    13. Castañeda Dower, Paul & Gerber, Theodore P. & Weber, Shlomo, 2022. "Firms, kinship networks, and economic growth in the Kyrgyz Republic," Journal of Comparative Economics, Elsevier, vol. 50(4), pages 997-1018.
    14. Philippe Jehiel & Erik Mohlin, 2023. "Categorization in Games: A Bias-Variance Perspective," Working Papers halshs-04154272, HAL.
    15. Alessandra Cassar & Giovanna d'Adda & Pauline Grosjean, 2014. "Institutional Quality, Culture, and Norms of Cooperation: Evidence from Behavioral Field Experiments," Journal of Law and Economics, University of Chicago Press, vol. 57(3), pages 821-863.
    16. Kamei, Kenju, 2020. "Group size effect and over-punishment in the case of third party enforcement of social norms," Journal of Economic Behavior & Organization, Elsevier, vol. 175(C), pages 395-412.
    17. Yann Algan & Pierre Cahuc, 2014. "Trust, Well-Being and Growth: New Evidence and Policy Implications," Post-Print hal-01169659, HAL.
    18. Heiko Rauhut, 2009. "Higher Punishment, Less Control?," Rationality and Society, , vol. 21(3), pages 359-392, August.
    19. Levine, David K. & Pesendorfer, Wolfgang, 2007. "The evolution of cooperation through imitation," Games and Economic Behavior, Elsevier, vol. 58(2), pages 293-315, February.
    20. Syngjoo Choi & Edoardo Gallo & Shachar Kariv, 2015. "Networks in the laboratory," Cambridge Working Papers in Economics 1551, Faculty of Economics, University of Cambridge.

    More about this item

    Keywords

    Informal Contract Enforcement; Communication; Learning; Networks;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

    NEP fields

    This paper has been announced in the following NEP Reports:

    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:zbw:gdec10:11. 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: ZBW - Leibniz Information Centre for Economics (email available below). General contact details of provider: https://edirc.repec.org/data/vfselea.html .

    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.