Gabriel Tarde was a French sociologist and criminologist whose work is rediscovered from time to time. Economists of innovation have paid insufficient attention to an author who devoted a large part of his work to the laws of imitation and invention. The purpose of this paper is threefold. The...

The concept of productivity is at the heart of economic theory, management science and operational management of firms and organizations. Despite the theoretical and operational importance of this concept, in recent years, its absolutism has been challenged. Services are often at the heart of...

Le concept de réseau d'innovation est un concept bien établi qui a fait l'objet d'une abondante littérature théorique et empirique. Nous nous intéressons dans ce travail à des réseaux d'innovations particuliers, encore peu connus, mais qui se développent dans une économie de service...