Taking into account both competence and governance issues, and six dimensions of tie strength, this article argues that … in networks for exploration there are good reasons, counter to the thesis of the 'strength of weak ties', for a dense … structure of ties that are strong in most dimensions.By contrast, in exploitation networks there are good reasons for structures …

and strength of ties in innovation networks.We study both exploration and exploitation networks in the Dutch multimedia …

, 2000), in two distinct empirical settings.Variety of cognition, needed for learning, has two dimensions: the number of … interfirm relationships optimal learning entails a trade-off between the advantage of increased cognitive distance for a higher … novelty value of a partner s knowledge, and the disadvantage of less mutual understanding.If the value of learning is the …