In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity of strong ties, we reject the hypothesis that weak ties...

This paper empirically explores relations between network positions in knowledge networks andtrust. In social network theory the closure argument and the gossip argument describe thisrelation. These two arguments do not distinguish between different dimensions of trust. In thispaper we estimate...

Table of contents -- Introduction by the editors -- Section I: Network as metaphors -- 1. “A Structured Literature Review on Networks and Organizations” by Anna Moretti and Marco Tolotti -- 2. A game-theoretic approach for managing origin-to-destination network flow with path preferences and...

Most network research in organizations assumes away the dissociative forces instantiated in negative ties, instead pursuing ties that reflect only associative forces, to the detriment of understanding organizational networks. This essay provides a brief history of negative tie research in...