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Journal Articles Electoral Studies Year : 2022

Chapel Hill Expert Survey trend file, 1999–2019

Seth Jolly
Ryan Bakker
  • Function : Author
Liesbet Hooghe
Gary Marks
Jonathan Polk
  • Function : Author
Marco Steenbergen
  • Function : Author
Milada Anna Vachudova


Research on party competition and political representation relies on valid cross-national measures of party positions. This research note reports on the 1999–2019 Chapel Hill expert survey (CHES), which contains measures of national party positioning on European integration, ideology, and several European Union (EU) and non-EU policies for six waves of the survey, from 1999 to 2019. The trend file provides party position measures for all 28 EU countries and 1196 party-year observations. In this article, we analyze the evolving party positions on European integration from 1999 to 2019, with a particular focus on how EU positions are related to economic left-right and the Green/Alternative/Libertarian-Traditional/Authoritarian/Nationalist dimension (GAL-TAN). The dataset is publicly available on the CHES website.
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Dates and versions

hal-03822280 , version 1 (20-10-2022)



Seth Jolly, Ryan Bakker, Liesbet Hooghe, Gary Marks, Jonathan Polk, et al.. Chapel Hill Expert Survey trend file, 1999–2019. Electoral Studies, 2022, 75, pp.102420. ⟨10.1016/j.electstud.2021.102420⟩. ⟨hal-03822280⟩
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