When Do Partisans Cross the Party Line? George Kwaku Ofosu∗ March 30, 2021 Abstract When will partisans cross party lines to elect a potentially better-performing opposition politician? Individuals in developing countries vote for politicians in expectation of public goods. Partisan ge- ography influences voters’ beliefs about politicians’ ability to exclude them from such goods. Since voters believe they are better able to replace poorly performing incumbents in competitive districts, partisans in non-segregated, competitive constituencies are more likely to vote for opposition can- didates than those in other settings. Using a conjoint experiment administered to voters that ran- domized the characteristics of parliamentary candidates in Ghana, I find that voters in competitive, non-segregated districts are the most willing to cross party lines. Additional data on actual public goods distribution supports the mechanism. Data from Ghana’s 2020 parliamentary elections con- firm the external validity of the findings: party switching is highest in this type of district. My results demonstrate the influence of constituency characteristics on electoral accountability. ∗Assistant Professor, London School of Economics and Political Science. Email:
[email protected]. Web: www. georgeofosu.com/. Samuel Kweku Yamoah and Mahmouda Ainoo provided excellent field research assistance. I am grateful to Kojo Asante, Sarah Brierley, Danny Choi, Florian Foos, Adam Harris, Eric Kramon, Evan Morier, Galen Mur- ray, Noah Nathan, Franklin Oduro, Daniel Posner, Andrea Vilán, Michael Wahman, Josef Woldense, and Stephane Wolton for their helpful comments and suggestions. I also thank participants of the Midwest Workshop in Empirical Political Sci- ence and Comparative Politics Seminars at UCLA, UCL, Oxford’s Nuffield College, the Institutions and Political Inequality research unit at Wissenschaftszentrum Berlin (WZB), and UW-Madison for helpful feedback and suggestions.