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  • Influence
A Strategic Model of Social and Economic Networks
We study the stability and efficiency of social and economic networks, when self-interested individuals have the discretion to form or sever links. First, in the context of two stylized models, weExpand
The Diffusion of Microfinance
Introduction How do the network positions of the first individuals in a society to receive information about a new product affect its eventual diffusion? To answer this question, we develop a modelExpand
The Stability of Hedonic Coalition Structures
We consider the partitioning of a society into coalitions in purely hedonic settings, where each player's payoff is completely determined by the identity of other members of her coalition. Expand
The Evolution of Social and Economic Networks
We examine the dynamic formation and stochastic evolution of networks connecting individuals whose payoffs from an economic or social activity depends on the network structure in place. Expand
Naïve Learning in Social Networks and the Wisdom of Crowds
We study learning in a setting where agents receive independent noisy signals about the true value of a variable and then communicate in a network. Expand
Financial Networks and Contagion
We study cascades of failures in a network of interdependent financial organizations: how discontinuous changes in asset values (e.g., defaults and shutdowns) trigger further failures, and how thisExpand
The Effects of Social Networks on Employment and Inequality
We develop a model where agents obtain information about job opportunities through an explicitly modeled network of social contacts. We show that employment is positively correlated across time andExpand
A Survey of Models of Network Formation: Stability and Efficiency
I survey the recent literature on the formation of networks. I provide definitions of network games, a number of examples of models from the literature, and discuss some of what is known about theExpand
An Economic Model of Friendship: Homophily, Minorities and Segregation
We develop a model of friendship formation that sheds light on segregation patterns observed in social and economic networks. Individuals come in different types and have type-dependent benefits fromExpand
Meeting Strangers and Friends of Friends: How Random are Social Networks?
We present a dynamic model of network formation where nodes find other nodes with whom to form links in two ways: some are found uniformly at random, while others are found by searching locallyExpand