among sellers. In dense networks, competition limits the scope of indirect appropriability and intellectual property rights …

We analyze the formation of partnerships in social networks. Players need favors at random times and ask their …

realistic interbank networks that preserve important characteristics of the original interbank market. The method loads the most … probable links with the largest exposures consistent with the total lending and borrowing of each bank, leading to networks …

international trade between the different countries, depending on the types of networks formed. We present possible applications of …

in a buyer-seller network and suggest a framework for studying repeated games in such networks. In our framework, buyers …, sparseness, and segregation. We fi nd that the incentive constraints rule out networks that maximize the volume of trade and that … the constrained trade maximizing networks are in between old world segregated and sparse networks, and a global market …

In a general model of trading networks with bilateral contracts, we propose a suitably adapted chain stability concept … special case of trading networks with transferable utility, an outcome is consistent with competitive equilibrium if and only …

We survey the literature on social networks by putting together the economics, sociological and physics … network formation. While the physics/applied mathematics approach is capable of reproducing most observed networks, it does … not explain why they emerge. On the contrary, the economics approach is very precise in explaining why networks emerge but …