Resultados globales: 5 registros encontrados en 0.02 segundos.
Artículos, Encontrados 3 registros
Documentos de investigación, Encontrados 2 registros
Artículos Encontrados 3 registros  
42 p, 319.5 KB Communication and influence / Calvó-Armengol, Antoni (Universitat Autònoma de Barcelona) ; Martí Beltran, Joan de (Universitat Pompeu Fabra) ; Prat, Andrea (Columbia University)
We study the information flows that arise among a set of agents with local knowledge and directed payoff interactions, which differ among pairs of agents. First, we study the equilibrium of a game where, before making decisions, agents can invest in pairwise active communication (speaking) and pairwise passive communication (listening). [...]
2015 - 10.3982/TE1468
Theoretical economics, Vol. 10 Núm. 2 (2015)  
34 p, 226.8 KB La Crema : a case study of mutual fire insurance / Cabrales, Antonio 1964- (Universitat Pompeu Fabra) ; Calvó Armengol, Antoni (Universitat Autònoma de Barcelona) ; Jackson, Matthew O. (California Institute of Technology)
We analyze a mutual fire insurance mechanism used in Andorra, which is called La Crema in the local language. This mechanism relies on households' announced property values to determine how much a household is reimbursed in the case of a fire and how payments are apportioned among other households. [...]
honestly report the true value of their property. However, such honest reporting is not an equilibrium except in the extreme case in which the property values are identical for all households. Nevertheless, as the size of the society becomes large, the benefits from deviating from truthful reporting vanish, and all the nondegenerate equilibria of the mechanism are nearly truthful and approximately Pareto efficient.

2003 - 10.1086/367680
Journal of Political Economy, Vol. 111 Núm. 2 (2003) , p. 425-458  
29 p, 325.1 KB Pairwise-stability and Nash equilibria in network formation / Calvó-Armengol, Antoni (Universitat Autònoma de Barcelona. Departament d'Economia Aplicada) ; Ilkılıç, Rahmi (Universiteit Maastricht. Department of Economics)
Suppose that individual payoffs depend on the network connecting them. Consider the following simultaneous move game of network formation: players announce independently the links they wish to form, and links are formed only under mutual consent. [...]
2009 - 10.1007/s00182-008-0140-7
International journal of game theory, Vol. 38 (2009) , p. 51-79  

Documentos de investigación Encontrados 2 registros  
160 p, 882.9 KB Essays on networks in economics : : pairwise influences and communication processes / Martí Beltran, Joan de ; Calvó Armengol, Antoni, dir.
Aquesta tesi estudia dues qüestions diferents. En primer lloc, les conseqüències econòmiques de les influències per parelles, enteses com externalitats amb intensitat i signe depenent de la parella d'agents considerats. [...]
This thesis addresses two different questions. First, the economic consequences of pairwise influences, understood as externalities which intensity and sign depend on the pair of agents considered. Second, the effects of different communication processes in small groups, and its consequences for the optimal inner network structure of informal organizations. [...]

Bellaterra : Universitat Autònoma de Barcelona, 2007  
102 p, 628.2 KB On peer networks and group formation / Ballester, Coralio ; Calvó Armengol, Antoni, dir. ; Vilà, Xavier, (Vilà Carnicero) dir. (Universitat Autònoma de Barcelona. Departament d'Economia i d'Història Econòmica)
En el artículo «NP-completeness in Hedonic Games», identificamos algunas limitaciones significativas de los modelos estándar de juegos cooperativos: A menudo, es imposible alcanzar una organización estable de una sociedad en una cantidad de tiempo razonable. [...]
The aim of this thesis work is to contribute to the analysis of the interaction of agents in social networks and groups. In the chapter "NP-completeness in Hedonic Games", we identify some significant limitations in standard models of cooperation in games: It is often impossible to achieve a stable organization of a society in a reasonable amount of time. [...]

Bellaterra : Universitat Autònoma de Barcelona, 2006  

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