Dynamics of effort allocation and evolution of trust: an agent-based model



Trust is a dynamic and complex phenomenon and understanding the factors which affect its formation, evolution and disappearance is a critical research issue. It has been shown that trust plays a key role in how human and social capital develop, how economies grow and how societies progress. In this paper, we present an agent-based model of the relations between a dynamic effort allocation system, an evolving trust framework and a reputation module to study how changes in micro-level rent-seeking traits and decisions can shape the emergence of trust across the simulated environment. According to our results, variations in trust are correlated more with the returns to being productive, rather than rent-seeking. In line with previous studies, our model shows that higher than average levels of risk-taking by agents lead to further trust and gains during an interaction, though taken to an extreme, both trust and gain can decline as a result of reckless decisions. We also report on the formation of trust clusters in our model as an emergent phenomenon.


Effort allocation Trust Rent-seeking Agent-based model 


  1. Baumol WJ (1990) Entrepreneurship: productive, unproductive, and destructive. J Polit Econ 98(5):893–921 CrossRefGoogle Scholar
  2. Bhagwati JN (1982) Directly unproductive, profit-seeking (DUP) activities. J Polit Econ 90(5):988–1002 CrossRefGoogle Scholar
  3. Breuer JB, McDermott J (2012) Culture, caution, and trust. J Dev Econ 97(1):15–23. doi: 10.1016/j.jdeveco.2011.02.001 CrossRefGoogle Scholar
  4. Burcu Ö, Christian B (2011) Social trust and human development. J Socio-Econ 40(6):753–762 CrossRefGoogle Scholar
  5. Fukuyama F (1995) Trust: the social virtues and the creation of prosperity. Free Press, New York Google Scholar
  6. Girvan M, Newman MEJ (2002) Community structure in social and biological networks. Proc Natl Acad Sci USA 99(12):7821–7826. doi: 10.1073/pnas.122653799 CrossRefGoogle Scholar
  7. Greif A (1989) Reputation and coalitions in medieval trade: evidence on the Maghribi traders. J Econ Hist 49(04):857–882. doi: 10.1017/S0022050700009475 CrossRefGoogle Scholar
  8. Greif A (1993) Contract enforceability and economic institutions in early trade: the Maghribi traders’ coalition. Am Econ Rev 83(3):525–548 Google Scholar
  9. Grimm V, Berger U, DeAngelis DL, Polhill JG, Giske J, Railsback SF (2010) The ODD protocol: a review and first update. Ecol Model 221(23):2760–2768 CrossRefGoogle Scholar
  10. Hausken K (2005) Production and conflict models versus rent-seeking models. Public Choice 123:(1/2):59–93 CrossRefGoogle Scholar
  11. Johnson ND, Mislin AA (2011) Trust games: a meta-analysis. J Econ Psychol 32(5):865–889. doi: 10.1016/j.joep.2011.05.007 CrossRefGoogle Scholar
  12. Karlan D, Mobius M, Rosenblat T, Szeidl A (2009) Trust and social collateral. Q J Econ 124(3):1307–1361. doi: 10.1162/qjec.2009.124.3.1307 CrossRefGoogle Scholar
  13. Knack S, Keefer P (1997) Does social capital have an economic payoff? A cross-country investigation. Q J Econ 112(4):1251–1288. doi: 10.1162/003355300555475 Google Scholar
  14. Krueger AO (1974) The political economy of the rent-seeking society. Am Econ Rev 64(3):291–303 Google Scholar
  15. Kydd AH (2005) Trust and mistrust in International relations. Princeton University Press, Princeton Google Scholar
  16. Kydd AH (2010) Learning together, growing apart: global warming, energy policy and international trust. Energy Policy 38(6):2675–2680. doi: 10.1016/j.enpol.2009.05.056 CrossRefGoogle Scholar
  17. La Porta R, Lopez-de-Silanes F, Shleifer A, Vishny RW (1997) Trust in large organizations. Am Econ Rev 87(2):333–338 Google Scholar
  18. Labonne J, Chase RS (2010) A road to trust. J Econ Behav Organ 74(3):253–261. doi: 10.1016/j.jebo.2010.03.022 CrossRefGoogle Scholar
  19. Landa JT (1981) A theory of the ethnically homogeneous middleman group: an institutional alternative to contract law. J Leg Stud 10(2):349–362 CrossRefGoogle Scholar
  20. Landa JT (1994) Trust, ethnicity, and identity: beyond the new institutional economics of ethnic trading networks, contract law, and gift-exchange. economics, cognition, and society. University of Michigan Press, Ann Arbor Google Scholar
  21. Macy MW, Sato Y (2002) Trust, cooperation, and market formation in the US and Japan. Proc Natl Acad Sci USA 99 (Suppl(3):7214–7220. doi: 10.1073/pnas.082097399 CrossRefGoogle Scholar
  22. Macy M, Sato Y (2008) Reply to Will and Hegselmann. J Artif Soc Soc Simul 11(4):11 Google Scholar
  23. Murphy KM, Shleifer A, Vishny RW (1993) Why is rent-seeking so costly to growth? Am Econ Rev 83(2):409–414 Google Scholar
  24. Ostrom E (2000) Collective action and the evolution of social norms. J Econ Perspect 14(3):137–158 CrossRefGoogle Scholar
  25. Ostrom E, Walker J (2003) Trust and reciprocity: interdisciplinary lessons from experimental research. Russell Sage foundation series on trust, vol 6. Russell Sage Foundation, New York Google Scholar
  26. Quddus M, Goldsby M, Farooque M (2000) Trust: the social virtues and the creation of prosperity–a review article. East Econ J 26(1):87–98 Google Scholar
  27. R Development Core Team (2011) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria Google Scholar
  28. Ramchurn SD, Huynh G, Jennings NR (2004) Trust in multi-agent systems. Knowl Eng Rev 19(01):1–25 CrossRefGoogle Scholar
  29. Roth F (2009) Does too much trust hamper economic growth? Kyklos 62(1):103–128. doi: 10.1111/j.1467-6435.2009.00424.x CrossRefGoogle Scholar
  30. Sabater J, Sierra C (2005) Review on computational trust and reputation models. Artif Intell Rev 24(1):33–60. doi: 10.1007/s10462-004-0041-5 CrossRefGoogle Scholar
  31. Schlosser A, Voss M, Brückner L (2005) On the simulation of global reputation systems. J Artif Soc Soc Simul 9(1):4 Google Scholar
  32. Tatham P, Kovács G (2010) The application of “swift trust” to humanitarian logistics. Int J Prod Econ 126(1):35–45. doi: 10.1016/j.ijpe.2009.10.006 CrossRefGoogle Scholar
  33. Tollison RD (1982) Rent seeking: a survey. Kyklos 35(4):575–602. doi: 10.1111/j.1467-6435.1982.tb00174.x CrossRefGoogle Scholar
  34. Uslaner EM (2002) The moral foundations of trust. Cambridge University Press, Cambridge Google Scholar
  35. Vogler J (2010) The institutionalisation of trust in the international climate regime. Energy Policy 38(6):2681–2687. doi: 10.1016/j.enpol.2009.05.043 CrossRefGoogle Scholar
  36. Wang L, Gordon P (2011) Trust and institutions: a multilevel analysis. J Socio-Econ 40(5):583–593. doi: 10.1016/j.socec.2011.04.015 CrossRefGoogle Scholar
  37. Wilensky U (1999) NetLogo: center for connected learning and computer-based modeling. Northwestern University, Evanston Google Scholar
  38. Will O (2009) Resolving a replication that failed: news on the Macy & Sato model. J Artif Soc Soc Simul 12(4):11 Google Scholar
  39. Will O (2010) HUME1.0—an agent-based model on the evolution of trust in strangers and division of labour multi-agent-based simulation. In: Di Tosto G, Van Dyke Parunak H (eds) Lecture notes in computer science, vol 5683. Springer, Berlin, pp 123–134. doi: 10.1007/978-3-642-13553-8_11 Google Scholar
  40. Will O, Hegselmann R (2008a) Remark on a reply. J Artif Soc Soc Simul 11(4):13 Google Scholar
  41. Will O, Hegselmann R (2008b) A replication that failed—on the computational model in Michael W. Macy and Yoshimichi Sato: trust, cooperation and market formation in the US and Japan. proceedings of the national academy of sciences, may 2002’. J Artif Soc Soc Simul 11(3):3 Google Scholar
  42. Zak PJ, Knack S (2001) Trust and growth. Econ J (Lond) 111(470):295–321. doi: 10.1111/1468-0297.00609 CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of Econometrics and Business StatisticsMonash UniversityMelbourneAustralia

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