How do nationalistic media affect animosity between ethnic groups? We consider one of Europe’s deadliest conflicts since WWII: the Serbo-Croatian conflict. We show that, after a decade of peace, cross-border nationalistic Serbian radio triggers ethnic hatred towards Serbs in Croatia. Mostly...

Which factors stand in the way of cooperation between countries formerly at war? We examine the role of nationalistic content of a media outlet reaching citizens of a neighboring country. We consider radio signals travelling across borders in the region that witnessed one of Europe’s deadliest...