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Inter-Group Conflict and Intra-Group Punishment in an Experimental Contest Game

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  • Klaus Abbink

    ()

  • Jordi Brandts

    ()

  • Benedikt Herrmann

    ()

  • Henrik Orzen

    ()

Abstract

We study how conflict in a contest game is influenced by rival parties being groups and by group members being able to punish each other. Our main motivation stems from the analysis of socio-political conflict. The relevant theoretical prediction in our setting is that conflict expenditures are independent of group size and independent of whether punishment is available or not. We find, first, that our results contradict the independence of group-size prediction: conflict expenditures of groups are substantially larger than those of individuals, and both are substantially above equilibrium. Towards the end of the experiment material losses in groups are 257% of the predicted level. There is, however, substantial heterogeneity in the investment behaviour of individual group members. Second, allowing group members to punish each other after individual contributions to the contest effort are revealed leads to even larger conflict expenditures. Now material losses are 869% of the equilibrium level and there is much less heterogeneity in individual group members? investments. These results contrast strongly with those from public goods experiments where punishment enhances efficiency and leads to higher material payoffs.

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Bibliographic Info

Paper provided by Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC) in its series UFAE and IAE Working Papers with number 723.08.

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Length: 28
Date of creation: 15 Jan 2008
Date of revision:
Handle: RePEc:aub:autbar:723.08

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Keywords: Laboratory experiments; Rent-seeking; Conflict; Group competitiveness;

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