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Love for Efficiency or Confusion? A QRE Analysis of Individual Contributions in a Public Good Game

  • Luca Corazzini, Marcelo Tyszler

Does the hypothesis of 'love for (group) efficiency' account for subjects' over-contribution in public good games? By using data from a VCM experiment with heterogeneous endowments and asymmetric information, we estimate a quantal response equilibrium (QRE) extension of a model in which subjects have preferences for group efficiency. Under the hypothesis of homogeneous population, the estimated parameter of subjects' concerns for efficiency vanishes and most of the variability of contributions seems to be explained by noisy behaviors. A different picture emerges when we introduce cross-subject heterogeneity in concerns for group efficiency. In this case, the majority of the subjects makes contributions that are compatible with the hypothesis of 'love for (group) efficiency'. A formal likelihood-ratio test strongly rejects the models not allowing for noise in contributions and homogeneous subjects for the more general QRE extension with heterogeneous preferences for (group) efficiency coupled with noise in subjects' behavior.

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File URL: ftp://ftp.unibocconi.it/pub/RePEc/slp/papers/islawp37.pdf
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Paper provided by ISLA, Centre for research on Latin American Studies and Transition Economies, Universita' Bocconi, Milano, Italy in its series ISLA Working Papers with number 37.

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Length: 17 pages
Date of creation: Aug 2010
Date of revision:
Handle: RePEc:slp:islawp:islawp37
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Web page: http://www.isla.unibocconi.it/

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  1. Fischbacher, Urs & Gachter, Simon & Fehr, Ernst, 2001. "Are people conditionally cooperative? Evidence from a public goods experiment," Economics Letters, Elsevier, vol. 71(3), pages 397-404, June.
  2. Lucca Corazzini & Marco Faravelli & Lucca Stanca, 2007. "A Prize to Give for: An Experiment on Public Good Funding Mechanisms," ESE Discussion Papers 159, Edinburgh School of Economics, University of Edinburgh.
  3. Fischbacher, Urs & Gächter, Simon, 2006. "Heterogeneous Social Preferences and the Dynamics of Free Riding in Public Goods," IZA Discussion Papers 2011, Institute for the Study of Labor (IZA).
  4. Dirk Engelmann & Martin Strobel, 2006. "Inequality Aversion, Efficiency, and Maximin Preferences in Simple Distribution Experiments: Reply," American Economic Review, American Economic Association, vol. 96(5), pages 1918-1923, December.
  5. Daniel Houser & Robert Kurzban, 2002. "Revisiting Kindness and Confusion in Public Goods Experiments," American Economic Review, American Economic Association, vol. 92(4), pages 1062-1069, September.
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