Triggering populist support in Europe: how internal political efficacy shapes the effect of economic vulnerability on party preferences

Abstract

When and why do economic grievances result in support for populist parties? We address a long-standing puzzle in understanding populist voters. Existing studies have produced mixed results about how economic characteristics drive support for populist parties. We argue this is because scholars have overlooked the central importance of internal political efficacy, i.e., a belief in one’s ability to affect political outcomes. Using three pooled waves of the European Social Survey (ESS 2014, 2016, and 2018) with over 80,000 individual observations over time, we find that the economic determinants of populist support are contingent on internal political efficacy. Although there are reasons to think that the combined effect of economic circumstances and efficacy may be stronger on support for the populist left because of their stronger emphasis on social justice, we do not find evidence of this with the limited observations of the populist left in our sample. Critically, our findings contrast with the simplified and theoretically unsatisfying explanations of populist support we often encounter in the literature that are based solely on economic dissatisfaction. Instead, our results imply that recent trends in European politics are not only about economic issues but also about a voter’s belief in having agency and competence to affect change.