@article{2017:vatter:deutsches_, title = {Deutsches Bundesrats- vs. Schweizer Senatsmodell im Lichte sich wandelnder Parteiensysteme: Repräsentation und Legitimität Zweiter Kammern im Vergleich}, year = {2017}, note = {There are two possible models for second chambers, which differ in terms of institutional arrangements and actor behaviour . In the German “Council Model“, Bundesrat members are appointed by subnational governments and they act as instructed agents of their Länder . Following the “Senate Model”, Swiss Councillors of States are chosen by direct popular elections and, once in parliament, they vote independently as voting instructions are banned by the Federal Constitution . However, both design options make it necessary for MPs to cope with a “Divided Government” (or: “Divided Parliament”) . When it comes to passing important legislation, German MPs organize in “informal grand coalitions”, Swiss Councillors of States engage in flexible, variable ad hoc coalitions . Parties and party strate- gies are at the heart of both adaption strategies . But the recent transformation of party sys- tems challenges those very strategies and influences the second chambers’ main principles (i .e . representation and legitimacy) . Compared to the representation of territorial interests and despite fundamentally different institutional arrangements, party logic has recently been gaining importance in both systems . Moreover, the second chambers’ legitimacy depends both in Germany and in Switzerland on transparent decision-making .}, journal = {ZParl Zeitschrift für Parlamentsfragen}, pages = {741--763}, author = {Vatter, Adrian and Freiburghaus, Rahel and Triaca, Ladina}, volume = {48}, number = {4} }