particular, if the linking costs are not too low and not too high, at least one such network is pairwise stable. Moreover, in … explanation for many core-periphery structures observed in real life social networks. -- Network Formation ; Heterogeneity …

density rather generates a more efficient network in terms of matching and clustering. These differences in network structure … capitalize into land prices, corroborating the hypothesis that agglomeration economies operate via network efficiency. …

, connections increase over time, but homophily on gender and ethnicity is relatively constant across time, university residences …, and different network layers. At the individual level, homophilous tendencies are persistent across time and network … layers. Furthermore, we see assortativity in homophilous tendencies. There is weaker, albeit significant, homophily over …

We construct an empirical measure of expected network spillovers that arise through default cascades for the U …

linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 …-1994. The interaction of this pre-existing network structure with patent growth in upstream technology fields has strong …

network; and [2] the incentives of a seller s to cooperate can be calculated as if the network was a random tree with seller s …