We survey the literatures on the economic consequences of the structure of social networks. We develop a taxonomy of … 'macro' and 'micro' characteristics of social inter-action networks and discuss both the theoretical and empirical findings … concerning the role of those characteristics in determining learning, diffusion, decisions, and resulting behaviors. We also …

. However, as in much of sub-Saharan Africa, the adoption and diffusion of such technologies has been slow. We use data from the … fertiliser. We use the structure of spatial networks of farmers and panel data to identify these influences and find that while …

We examine how participation in a microfinance program diffuses through social networks. We collected detailed … have higher eigenvector centrality. We estimate structural models of diffusion that allow us to (i) determine the relative …

who are most central in a network according to "diffusion centrality", which nests other standard centrality measures … diffusion central (not just those with many friends). Moreover, these nominees are more central in the network than traditional …

networks and diffusion of microfinance. We show that implementing such a policy outperforms other standard policies such as …In this chapter, we provide an overview on the literature on key players in networks. We first introduce the … then examine the empirical tests of the key-player policies for criminal networks, education, R&D networks, financial …

maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are …