In 2015, German Chancellor Angela Merkel decided to allow over a million asylum seekers to cross the border into Germany. One key concern at the time was that her decision would signal an open-door policy to aspiring migrants worldwide – thus, increasing migration to Germany in the long-term....

As immigration to Europe has increased, so has support for extremist parties. While many studies have examined the effect of immigration on election outcomes, few have probed the effect of asylum seekers – those fleeing strife and persecution – on voting, nor has there been much research on...