A Tragic Solution to the Collective Action Problem: Implications for Corruption, Conflict and Inequality
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We study the role of an enforcer in the e§ectiveness of selective incentives in solving the collective action problem when groups take part in a contest. Cost functions exhibit constant elasticity of marginal e§ort costs. If prize valuations are homogeneous, our source of heterogeneity induces full costsharing and the Örst-best individual contributions; further, the group probability of winning goes up. With heterogeneity in prize valuations, an increase in the e§ectiveness of the enforcer in conáict increases the group probability of winning only if the prize valuation of the enforcer is lower than de Lehmer mean of those of the other players; however, the induced partial cost sharing is not group e¢ cient. If e§ectiveness "tends to inÖnity", the collective action problem is solved with partial cost-sharing if that prize valuation is not too low. Tragically, if productivity is low (if the prize is private in our set up) this occurs with corrupt coalitions which have been shown to form together with conáict and inequality endogenously; otherwise, this occurs with non corrupt coalitions. Further, even if such valuation is too low the group winning probability goes up. In this latter case, over cost-sharing yields group e¢ ciency.
How to citeNieva, R., (2020). A Tragic Solution to the Collective Action Problem: Implications for Corruption, Conflict and Inequality. Nota di Lavoro. https://www.feem.it/en/publications/feem-working-papers-note-di-lavoro-series/a-tragic-solution-to-the-collective-action-problem-implications-for-corruption-conflict-and-inequality/
PublisherFondazione Eni Enrico Mattei
Category / SubcategoryCiencias sociales / Procesos sociales
- Economía 
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