Replication data for: The Unholy Trinity: Immigration, Unemployment and Extremism in Europe, 1980-2002

In this paper we focus on the ways in which immigration and unemployment interact and affect the probability of voting for an extreme right (ER) party in Europe. We begin by replicating the results from “Contextual Factors and the Extreme Right Vote in Western Europe, 1980-2002” by Arzheimer (2009), which finds that immigration (measured by the number of asylum seekers) and unemployment have positive marginal effects and, counterintuitively, a negative interaction effect. We challenge Arzheimer’s (2009) employment of asylum seekers as a proxy for immigration and instead suggest two alternate, more direct measures: net migration and percent of foreign population. Using these new measures, we find a positive interaction effect between immigration and unemployment.