There is growing academic and policy interests in the factors that underpin the formation and the growth of clusters, especially for such 'hyped up' scientific and technological fields as the nanotechnologies. This paper analyses the determinants of scientific cluster growth (measured by the...

This article investigates how anchor firms sustain high tech clusters rejuvenation by means of technological pre-adaptation. Based on evidences are drawn from the comparison of the evolution of two nano-electronics clusters, i.e., Grenoble (France) and Catania (Italy) clusters which are sharing...

How have reforms in French doctoral education and academic research been implemented? How do changing doctoral education practices lead to changing research practices? New practice adoption among academics usually happens incrementally in the course of their everyday activity. Top-down...

Mobile technologies have brought convenience, flexibility and connectedness in our lives by enabling us to be reachable anywhere and anytime. All our environments such as work and home converge through a single device and we can private calls at work and professional calls during the weekend....

The aim of the paper is to characterize innovation with user communities and to explore managerial implications for creative industries. Based on four case studies, we explore the interrelations between the firm and user communities. The digitalization and virtualization of interactions change...

We provide a discipline for belief formation through a model of subjective beliefs, in which agents hold strategic beliefs. More precisely, we consider beliefs as a strategic variable that agents can choose (consciously or not) in order to maximize their utility at the equilibrium. These...

Nanotechnologies are reshaping the boundaries between industries, combining two aspects of innovation - both enhancing competences based on cumulative knowledge and experience and destroying competences by forcing the renewal of the firm's knowledge base. To analyze how worldwide R&D leaders...

In this paper, we show that behavioral features can be obtained at a group level when the individuals of the group are heterogeneous enough. Starting from a standard model of Pareto optimal allocations, with expected utility maximizers but allowing for heterogeneity among individual beliefs, we...

In this paper we analyse the risk attitude of a group of heterogenous agents and we develop a theory of comparative collective risk tolerance. In particular, we characterize how shifts in the distribution of individual levels of risk tolerance affect the representative agent's degree of risk...

This paper presents an equilibrium model in a pure exchange economy when investors have three possible sources of heterogeneity. Investors may dier in their beliefs, in their level of risk aversion and in their time preference rate. We study the impact of investors heterogeneity on the...