How influential is ballot design in elections?

Agustin Casas, Guillermo Diaz, Christos Mavridis

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We exploit an original dataset from a referendum in Peru to study the influence of voting “arrangements” on electoral outcomes. The relative importance of these arrangements (e.g. ballot design) with respect to the fundamentals (e.g. ideology, candidates’ quality) has not been measured. After controlling for a comprehensive set of politicians’ characteristics, we estimate unbiased ballot order effects making use of the within party variation in outcomes. We estimate a non-linear proba-bility model and we create counterfactuals to conclude that ballot design not only may have changed the electoral results but also has a greater importance than candidates’ ideology, education, experience and party affiliation.

Original languageEnglish
JournalJournal of Elections, Public Opinion and Parties
Publication statusAccepted/In press - 2020

ASJC Scopus subject areas

  • Sociology and Political Science


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