This dataset is the result of a collaborative work of two research projects at the University of Geneva: “Unequal Democracies,” financed by the European Research Council (Advanced Grant no. 741538, with Jonas Pontusson as principal investigator; SWISSUbase ref. nr: 14110) and “Inequality in the Mind,” financed by the Swiss National Science Foundation (Grant No. 100017_178980, with Nathalie Giger as principal investigator; SWISSUbase ref. nr: 13250).