Voting rights for immigrants are extended after three years of residency in Norway, creating a unique opportunity to examine their influence on political incorporation. This study leverages individual-level registry data and employs a regression discontinuity design (RDD) around the residency cutoff point. Analysis reveals that early voting access significantly increases subsequent electoral engagement among all immigrant groups.

Using RDD methodology, researchers pinpointed causal effects of being granted early voting rights in Norway. The findings demonstrate stronger political participation for immigrants with earlier voting opportunities. Notably, these benefits appear most pronounced for immigrants originating from dictatorships and weak democracies.

Beyond elections: the study also observes consistent evidence of spillover effects on other dimensions of political engagement among recipients of early voting access.

The significance lies in showing how specific timing of political rights extension can shape long-term integration outcomes, particularly easing transitions for newcomers from developing political systems.