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Cournot Competition on a Network of Markets and Firms
Ilkiliç, Rahmi - Fondazione ENI Enrico Mattei (FEEM) - 2009
Suppose markets and firms are connected in a bi-partite network, where firms can only supply to the markets they are connected to. Firms compete a la Cournot and decide how much to supply to each market they have a link with. We assume that markets have linear demand functions and firms have...
Persistent link: https://www.econbiz.de/10005008039
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Network of Commons
Ilkiliç, Rahmi - Fondazione ENI Enrico Mattei (FEEM) - 2008
A tragedy of the commons appears when the users of a common resource have incentives to exploit it more than the socially efficient level. We analyze the situation when the tragedy of the commons is embedded in a network of users and sources. Users play a game of extractions, where they decide...
Persistent link: https://www.econbiz.de/10005423231
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Overlapping Coalitions, Bargaining and Networks
Agbaglah, Messan; Ehlers, Lars - Fondazione ENI Enrico Mattei (FEEM) - 2010
symmetric case. As an application, we establish an interesting link with the formation of networks. …
Persistent link: https://www.econbiz.de/10008674336
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Defining Rules in Cost Spanning Tree Problems Through the Canonical Form
Vidal-Puga, Juan J.; Bergantiños, Gustavo - Fondazione ENI Enrico Mattei (FEEM) - 2004
We define the canonical form of a cost spanning tree problem. The canonical form has the property that reducing the cost of any arc, the minimal cost of connecting agents to the source is also reduced. We argue that the canonical form is a relevant concept in this kind of problems and study a...
Persistent link: https://www.econbiz.de/10005230826
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Games on Networks: Direct Complements and Indirect Substitutes
Currarini, Sergio; Fumagalli, Elena; Panebianco, Fabrizio - Fondazione ENI Enrico Mattei (FEEM) - 2013
Many types of economic and social activities involve significant behavioral complementarities (peer effects) with neighbors in the social network. The same activities often exert externalities that cumulate in "stocks" affecting agents' welfare and incentives. For instance, smoking is subject to...
Persistent link: https://www.econbiz.de/10010610790
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(Anti-) Coordination in Networks
Kovarik, Jaromir; Mengel, Friederike; Romero, José Gabriel - Fondazione ENI Enrico Mattei (FEEM) - 2010
We study (anti-) coordination problems in networks in a laboratory experiment. Partici- pants interact with their …
Persistent link: https://www.econbiz.de/10008467327
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How Homophily Affects Learning and Diffusion in Networks
Golub, Benjamin; Jackson, Matthew O. - Fondazione ENI Enrico Mattei (FEEM) - 2009
We examine how three different communication processes operating through social networks are affected by homophily … friendship networks from the Adolescent Health dataset. …
Persistent link: https://www.econbiz.de/10005008021
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Optimal Equilibria of the Best Shot Game
Pin, Paolo; Dall'Asta, Luca; Ramezanpour, Abolfazl - Fondazione ENI Enrico Mattei (FEEM) - 2009
We consider any network environment in which the “best shot game” is played. This is the case where the possible actions are only two for every node (0 and 1), and the best response for a node is 1 if and only if all her neighbors play 0. A natural application of the model is one in which...
Persistent link: https://www.econbiz.de/10005008037
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Under-connected and Over-connected Networks
Hellmann, Tim; Buechel, Berno - Fondazione ENI Enrico Mattei (FEEM) - 2009
Since the seminal contribution of Jackson & Wolinsky 1996 [A Strategic Model of Social and Economic Networks, JET 71 …, 44-74] it has been widely acknowledged that the formation of social networks exhibits a general conflict between … general results that relate situations of positive externalities with stable networks that cannot be “too dense” in a well …
Persistent link: https://www.econbiz.de/10005008043
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Networks of Military Alliances, Wars, and International Trade
Jackson, Matthew O.; Nei, Stephen - Fondazione ENI Enrico Mattei (FEEM) - 2014
We investigate the role of networks of military alliances in preventing or encouraging wars between groups of countries …, we show that there do not exist any networks that are stable against the addition and deletion of alliances. We then show …
Persistent link: https://www.econbiz.de/10010781879