the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity …

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 … predicted by a weighted Bonacich centrality index, with weights accounting for distance-two relations. We find that both maximal …