Are parliaments with more parties cheaper to Bribe?

Marina Bannikova () and Attila Tasnádi

Working Papers from Universitat Rovira i Virgili, Department of Economics

Abstract: We collect data about 172 countries: their parliaments, level of corruption, perceptions of corruption of parliament and political parties. We find weak empirical evidence supporting the conclusion that corruption increases as the number of parties increases. To provide a theoretical explanation of this finding we present a simple theoretical model of parliaments formed by parties, which must decide whether to accept or reject a proposal in the presence of a briber, who is interested in having the bill passed. We compute the number of deputies the briber needs to persuade on average in parliaments with different structures described by the number of parties, the voting quota, and the allocation of seats among parties. We find that the average number of seats needed to be bribed decreases as the number of parties increases. Restricting the minimal number of seats a party may have, we show that the average number of seats to be bribed is smaller in parliaments without small parties. Restricting the maximum number of seats a party may have, we find that under simple majority the average number of seats needed to be bribed is smaller for parliaments in which one party has majority, but under qualified majority it hardly changes. Keywords: Bribing, party composition of a parliament, knapsack problem. JEL Classification Number: D73, D72.

Keywords: Corrupció política; 32 - Política (search for similar items in EconPapers)
Date: 2015
New Economics Papers: this item is included in nep-cdm and nep-pol
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