We study how social interaction and friendship shape students' political opinions in a natural experiment at Sciences Po, the cradle of top French politicians. Quasi-random assignments of students into the same short-term integration groups before their scholar curriculum reduce political...

We test whether the proactive use of instruments of direct democracy by voters can help to explain fiscal sustainability of 25 Swiss cantons. Using data of all cantonal popular votes since 1977, our results show that the fiscal reaction of cantonal governments to an increase in the debt to GDP...