Eine neue Studie des ifo Instituts zeigt, dass Bundestagsabgeordnete von CDU/CSU, die in sicheren Wahlkreisen gewählt wurden, mit einer deutlich höheren Wahrscheinlichkeit gegen die Ehe für alle gestimmt haben als Abgeordnete aus umkämpften Wahlkreisen. Eine Erhöhung des Stimmenvorsprungs...

It is well known that proposers have an advantage in the canonical model of bargaining in legislatures: proposers are sure of being part of the coalition that forms, and, conditional on being in a coalition, a player receives more as a proposer than as a coalition partner. In this paper I show...

In his seminal Social Choice and Individual Values, Kenneth Arrow stated that his theory applies to voting. Many voting theorists have been convinced that, on account of Arrow’s theorem, all voting methods must be seriously flawed. Arrow’s theory is strictly ordinal, the cardinal aggregation...

The paper elaborates the idea that voting is an instance of the aggregation of judgments, this being a more general concept than the aggregation of preferences. To aggregate judgments one must first measure them. I show that such aggregation has been unproblematic whenever it has been based on...

The paper challenges the 'orthodox doctrine' of collective choice theory according to which Arrow’s 'general possibility theorem' precludes rational decision procedures generally and implies that in particular all voting procedures must be flawed. I point out that all voting procedures are...

This paper presents evidence on biased voting by jurors from the Warsaw Pact countries who ranked high-level chess games. The roots of this bias are probably ideological, as there were no formal benefits for biased voting. Furthermore, this bias is observed only for jurors from Eastern...

In the study, the relevance of several optimum-currency-area (OCA) criteria is formally worked out in a welfare approach. The optimum monetary-policy rules of the supranational central bank are derived within the Barro-Gordon framework, and consideration is given to how the welfare of the member...

The ECB reform is designed to meet the challenges of an enlarged monetary union in the ECB Council. The reform is assessed by analysing alternatives for the classification of governors into groups of the rotation scheme like the synchronisation of the economic development of the member states....