economy. Our efficiency analysis further allows us to study the effect of competition on innovation in R&D intensive … portfolio of ideas that changes over time through innovations and knowledge spillovers between collaborating firms. The … destruction leading to the obsolescence of existing technologies. We quantify the innovation gains from collaborations, and show …

network structure. We provide a general characterization of both equilibrium networks and endogenous production choices, and … compare it to the efficient network architecture. We also allow for firms to differ in their technological characteristics …, investigate how this affects their propensity to collaborate and study the resulting network architecture. -- Bonacich centrality …

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. …

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 …

, 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. …

interact with a specific few, in economic decision making. Agents are assumed to occupy the nodes of a network and to interact … exchange as the topology of the underlying network is altered. We find that networks matter, that changes in a network …