The member states have self-interested objectives and they use their voting power in the Council of Ministers (CM) to maximize their shares from the EU budget, whereas European Parliament (EP) uses its power to support benevolent objectives and equality between member states. Given the current...

We introduce a model of dyadic social interactions and establish its correspondence with relational models theory (RMT), a theory of human social relationships. RMT posits four elementary models of relationships governing human interactions, singly or in combination: Communal Sharing, Authority...

We investigate the computational complexity of several decision problems in hedonic coalition formation games and demonstrate that attaining stability in such games remains NP-hard even when they are additive. Precisely, we prove that when either core stability or strict core stability is under...

“We are all socialists now,” Newsweek magazine declared some months ago. And with Republican stalwarts George Bush, Chris Cox, and Alan Greenspan respectively presiding over two of the largest expansions in federal programs since the New Deal, confessing to the failures of self-regulation,...

We investigate the computational complexity of several decision problems in hedonic coalition formation games and demonstrate that attaining stability in such games remains NP-hard even when they are additive. Precisely, we prove that when either core stability or strict core stability is under...

In the face of dramatic recent changes in the norms of sovereign debt restructuring - the substitution of collective action clauses for unanimous action requirements in bond contracts - academics and policymakers alike have raised questions about the underlying dynamics of the drafting and...

The Shapley-Shubik index is a specialization of the Shapley value and is widely applied to evaluate the power distribution in committees drawing binary decisions. It was generalized to decisions with more than two levels of approval both in the input and the output. The corresponding games are...

We show that any transferable utility game can be represented by an assignment of facilities to players, in which it is intuitively obvious how to allocate the total cost of the facilities. The intuitive solution in the representation turns out to be the Shapley value of the game, and thus...

In this paper, we re-examine the classical questions of implementation theory under complete information in a setting where coalitions are the fundamental behavioral units and the outcomes of their interactions are predicted by applying the solution concept of the core. The planner's exercise...

Strategy‐proofness (SP) is a sought‐after property in social choice functions because it ensures that agents have no incentive to misrepresent their private information at both the interim and ex post stages. Group strategy‐proofness (GSP), however, is a notion that is applied to the ex...