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Kamm, Aaron
Schram, Arthur
Year of Publication: 
Series/Report no.: 
Tinbergen Institute Discussion Paper 13-192/I
In a system of proportional representation, we study the interaction between a voter’s turnout decision and her party choice, and how these relate to party polarization. Quantal response equilibria predict such interaction effects. In particular they predict (i) a Polarization Effect: reduced strategic party choice when voting is voluntary makes voters more likely to vote for extreme parties (conditional on voting at all); (ii) an Extremist Effect: voters supporting extreme parties are most likely to vote; (iii) a Turnout Effect: party polarization increases voter turnout. We provide data from a laboratory experiment that support these theoretical predictions. In addition, we provide supporting empirical evidence from real world elections. Hence, the interaction between turnout and strategic voting that has been neglected in most of the previous literature is shown to be important.
Voting behavior
Proportional representation
Political participation
Strategic voting
Experimental Economics
Document Type: 
Working Paper

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