Rubí-Barceló, Antoni - Departament d'Economia Aplicada, Facultat de Ciències … - 2008
Empirical studies such as Goyal, van der Leij and Moraga (2006) or Newman (2004) show that scientific collaboration networks present a highly unequal and hierarchical distribution of links. This implies that some researchers can be much more active and productive than others and, consequently,...