neighbors in the social network. The same activities often exert externalities that cumulate in stocks affecting agents' welfare … instance, care about their friends' health). In such contexts, the patterns of strategic interaction differ from the network of … a weighted Bonacich centrality index, with weights accounting for distance-two relations. We find that both maximal …

rather develop: in treatments with a high-value agent, the network's centrality, stability, and efficiency all increase over …This paper reports the results of a laboratory experiment on network formation among heterogeneous agents. The … experimental design extends the basic Bala-Goyal (2000) model of network formation with decay and two-way flow of benefits by …

Social networks are a key factor of success in life, but they are also strongly segmented on gender, ethnicity, and … about how these traits are related to social networks. Based on unique data collected using incentivized experiments on more …. Furthermore, the larger the number of behavioral traits that students share, the higher the overall homophily. Using network …

Social networks are a key factor of success in life, but they are also strongly segmented on gender, ethnicity, and … about how these traits are associated to social networks. Based on unique data that we collected using incentivized … traits that students share, the higher the overall homophily. Then, using network econometrics, we show that the observed …

Social networks are a key factor of success in life, but they are also strongly segmented on gender, ethnicity, and … about how these traits are related to social networks. Based on unique data collected using incentivized experiments on more …. Furthermore, the larger the number of behavioral traits that students share, the higher the overall homophily. Using network …

Social networks are a key factor of success in life, but they are also strongly segmented on gender, ethnicity, and … about how these traits are related to social networks. Based on unique data collected using incentivized experiments on more …. Furthermore, the larger the number of behavioral traits that students share, the higher the overall homophily. Using network …

Field studies of networks have uncovered a preference to befriend people we perceive as similar according to some … dimensions of our identity ('homophily'). Lab studies of network formation games have found that adherence to social norms of … reciprocity and inequity aversion are also drivers of network choices. No study so far has attempted to investigate the role of …

available and widely used datasets. We present results on the identification of social networks from observational panel data … are globally identified if networks are constant over time. We also provide an extension of the method for time …-varying networks. We then describe how high-dimensional estimation techniques can be used to estimate the interactions model based on …

network. Interestingly, unconnected equilibria are asymmetric and central players may emerge. Second, I show that non …

Since the seminal contribution of Jackson & Wolinsky 1996 [A Strategic Model of Social and Economic Networks, JET 71 …, 44-74] it has been widely acknowledged that the formation of social networks exhibits a general conflict between … results that relate situations of positive externalities with stable networks that cannot be 'too dense' in a well …