The social innovations have been together with the advanced technology in the 21st century, taking an essential role in social structures and their informatization processes. Information technology has become an indispensable factor not only in industry and service businesses, but also in...

We argue that societies sometimes choose not to enforce the law to gain 'flexibility'. Especially developing countries face a dilemma between discretion and commitment to only partially-contingent rules. Rules are good for incentives, but discretion may be more 'flexible'. We embed this dilemma...

We theoretically investigate how political abstention among certain social groups encourages populist parties to enter the political stage, trying to absorb inactive voters. We design a two-stage game with two established parties and n voters who jointly determine a taxation policy. The...

When choosing among alternatives, group members may have various preferences regarding the properties of a solution being sought. Since the properties partially do and partially do not meet their collective wishes, the alternatives are in fact better or worse representatives of the collective...

In this paper, we study the Nash implementation in an allocation problem with single-dipped preferences. We show that, with at least three agents, Maskin monotonicity is necessary and sufficient for implementation. We examine the implementability of various social choice correspondences (SCCs)...

This paper discusses three approaches in economics which take a position on the definition of well-being and which use insights from psychology to support their positions: Scitovsky's Joyless Economy, happiness economics, and the constitutional approach to happiness in economics. The paper shows...

Nach den Ergebnissen der Managerbefragung ist eine große Mehrheit der Unternehmen Mitglied in einem (Wirtschafts-)Verband und mit der Arbeit der Verbände zufrieden. Etwa 10% denken über einen Austritt aus einem Verband nach. Der Einfluss von Gewerkschaften auf die Politik ist in den letzten...

Agents involved in a conflicting claims problem may be concerned with the proportion of their claims that is satisfied, or with the total amount they get. In order to relate both perspectives, we associate to each conflicting claims problem a bargaining-in-proportions set. Then, we obtain a...