efficient network maximizing social welfare, and find that the efficient graph is either empty, complete or shows a strong core … counterfactual analyses, taking into account that the network and production can dynamically adjust to shocks or policy interventions ….6%. Our study further reveals that when ignoring the network structure the impact of firm exit or mergers is significantly …

We introduce a simple two-stage game of endogenous network formation and information sharing for reasoning about the … then we study how the network design and the utility specifications affect welfare. Surprisingly, we find that in general … "babblers" or "friends", irrespective of whether the network is unilateral or bilateral, in equilibrium, targeted information …

We propose a random network model incorporating heterogeneity of agents and a continuous notion of homophily. Unlike … equality of agents. We show that if links between similar agents are indeed more likely, our homophilous random network model … social network. …

the interplay between knowledge diffusion and network formation can give rise to a cyclical pattern in the collaboration … large R&D collaboration network over the years 1985 to 2011. We then study the efficient network structure, compare it to … the decentralized equilibrium structures generated, and design an optimal network policy to maximize welfare in the …

, learning and diffusion, and network games. I also include some background on social network characteristics and measurements …, models of network formation, models for the statistical analysis of social networks, as well as community detection. …

in the context of a network formation game (where links can be interpreted as friendships in a social network … acquiring the information with others) through a percolation process over the equilibrium network. Privacy concerns are modeled …