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Social Effects in a Multi-Agent Investment Game. An Experimental Analysis


  • Luigi Mittone


  • Matteo Ploner



We experimentally investigate social effects in a principal-agent setting with incomplete contracts. The strategic interaction scheme is based on the well-known Investment Game (Berg et al., 1995). In our setting four agents (i.e., trustees) and one principal (i.e., trustor) are interacting and the access to choices of peers in the group of trustees is experimentally manipulated. Overall, subjects are positively influenced by peer's choices they observe. However, the positive interaction between choices is not strong enough to raise the reciprocity of those observing at the same level of those whose choices are observed.

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  • Luigi Mittone & Matteo Ploner, 2009. "Social Effects in a Multi-Agent Investment Game. An Experimental Analysis," CEEL Working Papers 0905, Cognitive and Experimental Economics Laboratory, Department of Economics, University of Trento, Italia.
  • Handle: RePEc:trn:utwpce:0905

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    Cited by:

    1. Simon Gächter & Daniele Nosenzo & Martin Sefton, 2012. "The Impact of Social Comparisons on Reciprocity," Scandinavian Journal of Economics, Wiley Blackwell, vol. 114(4), pages 1346-1367, December.
    2. Jérémy Celse, 2009. "Will Joe the Plumber envy Bill Gates? The impact of both absolute and relative differences on interdependent preferences," Working Papers 09-26, LAMETA, Universtiy of Montpellier, revised Dec 2009.
    3. Bigoni, Maria & Bortolotti, Stefania & Casari, Marco & Gambetta, Diego, 2013. "It takes two to cheat: An experiment on derived trust," European Economic Review, Elsevier, vol. 64(C), pages 129-146.
    4. M. Bigoni & S. Bortolotti & M. Casari & D. Gambetta, 2012. "Trustworthy by Convention," Working Papers wp827, Dipartimento Scienze Economiche, Universita' di Bologna.
    5. Gächter, Simon & Thöni, Christian, 2010. "Social comparison and performance: Experimental evidence on the fair wage-effort hypothesis," Journal of Economic Behavior & Organization, Elsevier, vol. 76(3), pages 531-543, December.

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