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

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.