neighbors in the social network. The same activities often exert externalities that cumulate in "stocks" affecting agents … network of social relations, as agents display strategic substitution with distance-two neighbors. We show that behavior is … behavior and key-players tend to move to the periphery of the network, and we discuss the effect of close-knit communities and …

in expenditure where the network may change endogenously, and we exploit the design of the randomized intervention to …A large literature has studied how peers affect behavior by exploiting the preexisting social network structure only …. What if networks rewire in response to changes in the economic environment, such as a randomized intervention? We exploit a …

studying econometric methods for the analysis of social networks. We begin by providing a common framework for models of social … effects, a class that includes the 'linear-in-means' local average model, the local aggregate model, and models where network …/quasi-experimental data. We then discuss models of network formation, drawing on a range of literatures to cover purely predictive models …