Asking about social circles improves election predictions

M. Galesic (), W. Bruine de Bruin, M. Dumas, Arie Kapteyn, J. E. Darling and Erik Meijer
Additional contact information
M. Galesic: Santa Fe Institute
W. Bruine de Bruin: Leeds University Business School, University of Leeds
M. Dumas: Santa Fe Institute
J. E. Darling: University of Southern California

Nature Human Behaviour, 2018, vol. 2, issue 3, 187-193

Abstract: Abstract Election outcomes can be difficult to predict. A recent example is the 2016 US presidential election, in which Hillary Clinton lost five states that had been predicted to go for her, and with them the White House. Most election polls ask people about their own voting intentions: whether they will vote and, if so, for which candidate. We show that, compared with own-intention questions, social-circle questions that ask participants about the voting intentions of their social contacts improved predictions of voting in the 2016 US and 2017 French presidential elections. Responses to social-circle questions predicted election outcomes on national, state and individual levels, helped to explain last-minute changes in people’s voting intentions and provided information about the dynamics of echo chambers among supporters of different candidates.

Date: 2018
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DOI: 10.1038/s41562-018-0302-y

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