-2000. We find that in the 1970's the world of economics was a collection of islands. Two decades later, in the 1990's the world … emerging small world.An exploration of the micro aspects of the network yields three findings: one, the average number of co … `stars', individuals who have a large number of co-authors. Thus the economics world is a set of inter-connected stars …

the economics world has the structure it does. The second part of the paper develops a simple theoretical model of co-authorship … 1970's the world of economics was a collection of islands. Two decades later, in the 1990's the world of economics was much … individuals on the largest island had fallen significantly. Thus we believe that economics is an emerging small world. An …

We provide a tractable concept that can be used to study the influence of the degree of farsightedness on network … stability. A set of networks GK is a level-K farsightedly stable set if three conditions are satisfied. First, external … deviations should be deterred. Second, from any network outside of GK there is a sequence of farsighted improving paths of length …

This paper studies the formation of networks among individuals. The focus is on the compatibility of overall societal … subject, and also provides new results on the existence of pairwise-stable networks and the relationship between pairwise … stable and efficient networks in a variety of contexts and under several definitions of efficiency. …

We analyze the formation of networks among individuals. In particular, we examine the existence of networks that are … stable networks one can restrict focus on a component-wise egalitarian allocation of value. We show that when such strongly … stable networks exist they coincide with the set of efficient networks (those maximizing the total productive value). We show …

This paper analyzes the formation of directed networks where self-interested individuals choose with whom they … networks that are efficient from a societal viewpoint. It is shown that for some contexts, to reconcile efficiency with … productive value of the network, or in ways that violate equity (i.e., anonymity). It is also shown that there are interesting …

farsighted players. A set of networks G is pairto a network outside G are deterred by the threat of ending worse off or equally …We propose a new concept, the pairwise farsightedly stable set, in order to predict which networks may be formed among … well wise farsightedly stable (i) if all possible pairwise deviations from any network g G …

We study the effects of institutional constraints on stability, efficiency and network formation. An exogenous … least one society that she also belongs to, thus restricting the feasible strategies and networks. In this setting, we …

This paper considers a model of economic network characterized by an endogenous architecture and frictions in the … relations among agents as described in Bala and Goyal (2000). We propose a similar network model with the difference that …