Early settlement locations in the host country profoundly shape immigrants' political integration.

Researchers analyzed Norwegian administrative register data using quasi-random assignment of refugees to neighborhoods. Findings reveal a stark difference:

* Residents assigned to the lowest-performing 20th percentile neighborhood experienced dramatically lower turnout compared to those initially placed in higher performing 80th percentile areas.

* This translated to an astonishing 12.6 percentage point gap (representing nearly half, or ~47%, of the overall participation disparity between refugees and Norwegian residents).

* Further analysis using individual-level data uncovered that while socioeconomic neighborhood factors mattered little, exposure to politically engaged neighbors had a substantial impact.

The results demonstrate how social networks, especially peer cohorts arriving around the same time as an immigrant, significantly influence their political trajectory. This early social immersion appears crucial for sustained integration.