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Vartiainen, Hannu - 2007

We study farsighted stability under the assumption that coalitions may condition actions on the history of the play. vNM stable set over possible play paths is defined with respect to the indirect dominance relation. We show that such dynamic stable set always exists. It is characterized by a...

Persistent link: https://www.econbiz.de/10012502976

Dynamic stable set

Vartiainen, Hannu - 2008

We study a dynamic vNM stable set in a compact metric space under the assumption of complete and continuous dominance relation. Internal and external stability are defined with respect to farsighted dominance. Stability of an outcome is conditioned on the history via which it is reached. A...

Persistent link: https://www.econbiz.de/10012502987

One-deviation principle in coalition formation

Vartiainen, Hannu - 2008

We study coalitional one-deviation principle in a framework a la Chwe (1994). The principle requires that an active coalition or any of its subcoalition will not benefit from a single deviation to a strategy that specifies, for each history of coalitional moves, an active coalition and its move....

Persistent link: https://www.econbiz.de/10012502989

Limit Solutions for Finite Horizon Bargaining Problems

Imai, Haruo; Salonen, Hannu - 2009

We investigate a random proposer bargaining game with a dead line. A bounded time interval is divided into bargaining periods of equal length and we study the limit of the subgame perfect equilibrium outcome as the number of bargaining periods goes to infinity while the dead line is kept fixed....

Persistent link: https://www.econbiz.de/10012503005

The impact of social media on belief formation

Schwarz, Marco - 2017

Social media are becoming increasingly important in our society and change the way people communicate, how they acquire information, and how they form beliefs. Experts are concerned that the rise of social media may make interaction and information exchange among like-minded individuals more...

Persistent link: https://www.econbiz.de/10011762816

Bonacich Measures as Equilibria in Network Models

Salonen, Hannu - 2015

We investigate the cases when the Bonacich measures of strongly connected directed bipartite networks can be … utilitity functions, where the matrices representing the network have dimension m × n. For connected directed bipartite networks … Bonacich measures of such networks can be interpreted as a subgame perfect equilibrium path of an extensive form game with …

Persistent link: https://www.econbiz.de/10012503054

Bonacich Network Measures as Minimum Norm Solutions

Hannu, Salonen - 2016

An undirected connected bimodal network has two Bonacich measures quantifying the centrality of the nodes. We show that the product of Bonacich measures of an undirected bimodal network may be viewed as a product measure that is nearest (w.r.t. Euclidean norm) to the matrix representing the...

Persistent link: https://www.econbiz.de/10012503059