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

out-of-sample forecast of portfolio returns and network centrality-based trading strategies seem to outperform market …This paper contributes to model the industry interconnecting structure in a network context. General predictive model … interdependency networks. Empirical results show a denser network with heterogeneous central industries in tail cases. Network …

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 …

This study examines the relationship between the diffusion of IT and changes in collaboration patterns across … natural sciences and narrower fields such as economics and biology. Two measures of institutional collaboration are examined … collaboration patterns across universities and then use regression analysis to examine the impact of IT exposure on multi …

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