Centre for Decision Research and Experimental Economics

CeDEx 2015-24: Legislative Bargaining with Heterogeneous Disagreement Values: Theory and Experiments


We study a legislative bargaining game in which failure to agree in a given round may result in a breakdown of negotiations. In that case, each player receives an exogenous `disagreement value'. We characterize the set of stationary subgame perfect equilibria under all q-majority rules. Under unanimity rule, equilibrium payoffs are strictly increasing in disagreement values. Under all less-than-unanimity rules, expected payoffs are either decreasing or first increasing and then decreasing in disagreement values. We conduct experiments involving three players using majority and unanimity rule, finding support for these predictions.

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Luis Miller, Maria Montero and Christoph Vanberg

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Posted on Wednesday 23rd December 2015

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