Do established parties change political institutions to disadvantage smaller, non-mainstream parties if the latters' electoral prospects improve? We study this question with a natural experiment from the German federal State of Hesse. The experiment is the abolishment of an explicit electoral...

Do established parties change political institutions to disadvantage smaller, nonmainstream parties if the latters ́electoral prospects improve? We study this question with a natural experiment from the German federal state of Hesse. The experiment is the abolishment of an explicit electoral...

This paper examines the importance of electoral rules for legislators' behavior. It uses a quasi-natural experiment that assigns whether legislators are elected under the "first-pass-the-post" (FPTP), or the proportional representation (PR) electoral rule. The experiment is generated by the...

This paper exploits a natural experiment in Hesse where a reform of the electoral rule from mayor appointment by the local council towards direct mayor elections was introduced during a phase-in period from 1993 to 1998. The end of the term of the last appointed mayor varies across...