We evaluate a natural experiment at a Swedish university, in which students were randomized to either taking all their courses online, or to have some courses online and some on campus (blended learning). Our setting creates two groups for the online courses: One group with no access to campus...

Between the 2014 and 2018 Swedish parliamentary elections, the vote share of the anti-immigration Sweden Democrats increased significantly. To evaluate the possibility of a causal link between immigration and the right-wing populist vote, this paper uses data from a nationwide policy experiment,...

What are the political effects of a nuclear accident? Following the 1986 Chernobyl disaster, environmentalist parties were elected to parliaments in several nations. This paper uses Chernobyl as a natural experiment creating variation in radioactive fallout exposure over Sweden. I match...