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Ethnic diversity and voting behavior at scale: Evidence from Uganda

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  • Bird, Samuel S.
  • Michuda, Aleksandr

Abstract

This study constructs a novel dataset on the ethnicity of individuals in an ethnically diverse country in sub-Saharan Africa. We measure ethnicity using a machine learning algorithm that exploits variation in surnames across ethnolinguistic groups. We apply this approach to voter registration data from Uganda’s 2016 general election. The resulting data capture local variation in ethnicity over a wide geographic scale. We pair these data with election outcomes from polling stations throughout Uganda to estimate the relationship between ethnicity and voting behavior. Our regression analyses both control for location and include interactions between ethnic groups within the same polling station. Local variation in ethnicity is associated with voting behavior at the level of the polling station, and these relationships vary with the presence of other ethnic groups at the polling station. The results suggest the importance of studying ethnic voting using local variation in ethnicity at scale.

Suggested Citation

  • Bird, Samuel S. & Michuda, Aleksandr, 2025. "Ethnic diversity and voting behavior at scale: Evidence from Uganda," World Development, Elsevier, vol. 196(C).
    • Handle: RePEc:eee:wdevel:v:196:y:2025:i:c:s0305750x25002670
    DOI: 10.1016/j.worlddev.2025.107181
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    JEL classification:

    • C5 - Mathematical and Quantitative Methods - - Econometric Modeling
    • C8 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs
    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • O1 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development
    • Z13 - Other Special Topics - - Cultural Economics - - - Economic Sociology; Economic Anthropology; Language; Social and Economic Stratification

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