Populism and Political Parties Expert Survey 2018 (POPPA)

The 2018 Populism and Political Parties Expert Survey (POPPA) dataset measures positions and attitudes of 250 parties on key attributes related to populism, political style, party ideology, and party organization in 28 European countries. The expert survey was fielded between April 2018 and July 2018 to 294 country-experts. The principal motivation for the expert survey is to provide a better understanding of key party characteristics related to populism and political representation. Rather than imposing one specific definition of populism and specifying which parties are to be classified as populist, the Populism and Political Parties Expert Survey (POPPA) aims to measure the relevant constitutive dimensions underlying dominant conceptualizations of populism for all political parties in each party system. The POPPA expert survey was conducted by dr. Maurits Meijers and dr. Andrej Zaslove. We are grateful for the amazing research assistance by Margot Daris, Loran de Hollander and Lars Stevenson. We could not have done this project without them. In addition, we would like to thank Victor Ellenbroek and Benthe van Wanrooij for their research assistance. The POPPA team gratefully acknowledges funding from Radboud University and from the Dutch Research Council (NWO) [Grant: M. Meijers, VI.Veni.191R.018]. We provide the following data files: - party_means: This file contains the mean expert judgments per political party. - party_medians: This file contains the median expert judgments per political party. - expert-level: This file contains the expert judgments per political party on expert level. All files are available in Stata format (.dta) and as a comma-separated values file (.csv).