Where does ethnic concentration matter for populist radical right support? An analysis of geographical scale and the halo effect

It is often hypothesised that the share of the population in an area belonging to an ethnic minority group positively influences the support for populist radical right-wing parties among native residents. However, empirical tests of this relationship have yielded mixed results, which may be a result of the wide variety of geographical scales at which ethnic concentration has been measured. Furthermore, it may be that it is the spatial...