Gaining Power through Enlargement: Strategic Foundations and Experimental Evidence

Michalis Drouvelis, Maria Montero, Martin Sefton

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Power indices suggest that adding new members to a voting body may affect the balance of power between the original members even if their number of votes and the decision rule remain constant. Some of the original members may actually gain even if voters are bargaining over a fixed budget. We show that this phenomenon can occur as an equilibrium of a non-cooperative bargaining game based on the Baron and Ferejohn (1989) model of legislative bargaining. We implement this game in the laboratory and find that power can be gained by adding new members as the theory predicts.
Original languageEnglish
Pages (from-to)274-292
JournalGames and Economic Behaviour
Issue number2
Publication statusPublished - 1 Jul 2010


Dive into the research topics of 'Gaining Power through Enlargement: Strategic Foundations and Experimental Evidence'. Together they form a unique fingerprint.

Cite this