focus on two knowledge-based relational phenomena: participation in the same research networks (funded by the EU Fifth …-spatial networks between geographically distant excellence centres prevail over diffusive patterns based on spatial contiguity. …

-layered diversification process in Western societies. Migration phenomena are largely responsible for this process both in receiving European … societies as well as in original sending countries. Migration has been and continues to be a ubiquitous human experience. Yet …

In this paper we study theoretically and empirically the role of the interaction between skilled migration and …

This paper tries to explain why most migration flows show some observable jumps in their processes, a phenomenon that … seems to be sympathetic with the characteristic of irreversibility of migration. We present a real option model where the … probability of being fully integrated into the host country. The theoretical results show that the optimal migration decision of a …

Option Theory, investigates the roots of the migration dynamics. In the model the decision to migrate of each individual … observable "jumps" in the migration flows and to describe how the trigger for entry can change depending on the dimension of the …

This work is devoted to study the role of combined entry and exit strategies in the migration process. We develop a … triggers the migration choice, while the second triggers the return to the country of origin. The theoretical results show that … in some cases we observe migration inflows with a low wage differential and also with underunemployment. We show also …

Global Innovation Networks (GINs), to shed light on how the protection of intellectual property rights (IPRs) influences …