of infinitely repeated Prisoner's Dilemmas played on the current social network. This network not only specifies the … dense social network. (b) The social architecture endogenously responds to increased volatility by becoming more cohesive …. (c) Network-based strategic effects are an essential buffer that preclude the abrupt collapse of the social network in …

In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on … the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity …

We study a model of network formation and start-up financing with endogenous entrepreneurial type distribution. A hub … firm admits members to its network based on signals about entrepreneurs' types. Network membership is observable, which … allows lenders to offer different interest rates to network and stand-alone entrepreneurs. We show that a network outcome can …

Ostrovsky [10] develops a theory of stability for a model of matching in exogenously given networks. For this model a … substitutability and cross side complementarity. Given this preference domain I analyze the interplay between properties of the network … stable network, and (v) the existence of an efficient and individually stable network. These equivalences also provide a …

first develop a model that shows that, at the Nash equilibrium, the outcome of each individual embedded in a network is … network specific factors, the individual's position in a network (as measured by her Katz-Bonacich centrality) is a key …