Similar Search Results

Local Network Effects and Network Structure

Sundararajan, Arun - EconWPA - 2004

This paper presents a model of local network effects in which agents connected in a social network each value adoption … equilibrium networks of adopters when the social network is an instance of a generalized random graph. …

Persistent link: https://www.econbiz.de/10005412882

Search in the Formation of Large Networks: How Random are Socially Generated Networks?

Jackson, Matthew O.; Rogers, Brian W. - EconWPA - 2005

We present a model of network formation where entering nodes find other nodes to link to both completely at random and … randomness in the formation process affects average utility in the network. …

Persistent link: https://www.econbiz.de/10005062339

A Survey of Models of Network Formation: Stability and Efficiency

Jackson, Matthew O. - EconWPA - 2003

I survey the recent literature on the formation of networks. I provide definitions of network games, a number of …

Persistent link: https://www.econbiz.de/10005550866

Nonspecific Networking

Durieu, Jacques; Haller, Hans; Solal, Philippe - EconWPA - 2004

A new model of strategic network formation is developed and analyzed, where an agent's investment in links is … applications from social interaction to industrial organization. Models of strategic network formation typically assume that each … level or intensity of networking. In the simplest case, the agent faces a binary choice: to network or not to network. If an …

Persistent link: https://www.econbiz.de/10005118625

The Stability and Efficiency of Economic and Social Networks

Jackson, Matthew O. - EconWPA - 2002

This paper studies the formation of networks among individuals. The focus is on the compatibility of overall societal welfare with individual incentives to form and sever links. The paper reviews and synthesizes some previous results on the subject, and also provides new results on the existence...

Persistent link: https://www.econbiz.de/10005135109

Strongly Stable Networks

Jackson, Matthew O.; Nouweland, Anne van den - EconWPA - 2002

We analyze the formation of networks among individuals. In particular, we examine the existence of networks that are stable against changes in links by any coalition of individuals. We show that to investigate the existence of such strongly stable networks one can restrict focus on a...

Persistent link: https://www.econbiz.de/10005135119

Congestion Games Revisited

Kukushkin, Nikolai S. - EconWPA - 2004

Strategic games are considered where the players derive their utilities from participation in certain 'processes.' Two subclasses consisting exclusively of potential games are singled out. In the first, players choose where to participate, but there is a unique way of participation, the same for...

Persistent link: https://www.econbiz.de/10005550874

On the Purification of Nash Equilibria of Large Games

Carmona, Guilherme - EconWPA - 2003

We consider Salim Rashid's asymptotic version of David Schmeidler's theorem on the purification of Nash equilibria. We show that, in contrast to what is stated, players' payoff functions have to be selected from an equicontinuous family in order for Rashid's theorem to hold. That is, a bound on...

Persistent link: https://www.econbiz.de/10005550924

On the Existence of Pure Strategy Nash Equilibria in Large Games

Carmona, Guilherme - EconWPA - 2004

We consider an asymptotic version of Mas-Colell's theorem on the existence of pure strategy Nash equilibria in large games. Our result states that, if players' payoff functions are selected from an equicontinuous family, then all sufficiently large games have an epsilon - pure, epsilon -...

Persistent link: https://www.econbiz.de/10005550926

Nash and Limit Equilibria of Games with a Continuum of Players

Carmona, Guilherme - EconWPA - 2003

We show that a strategy is a Nash equilibrium in a game with a continuum of players if and only if there exists a sequence of finite games such that its restriction is an $\varepsilon_n$-equilibria, with $\varepsilon_n$ converging to zero. In our characterization, the sequence of finite games...

Persistent link: https://www.econbiz.de/10005118535