We use patent citation networks to study the dynamics of technical change in Ethernet, a standard for data communication. We first consider the evolution of the broad technological system of local area networks (LANs) and we identify the most significant inventions within the specific subfield...

This opening address at the Festschrift in Honor of Stanley Metcalfe examines his major contributions concerning evolutionary theory, innovation and Schumpeterian dynamics, competition and innovation systems. Metcalfe's broad intellectual framework is first presented: the use of complementary...

This paper concentrates on the role of research network infrastructure in fostering the dissemination of innovation-related knowledge. It examines the structure of collaborative networks and of knowledge transfer between research, innovation and deployment activities in the field of information...

This paper proposes a framework for examining factors that affect innovation in sectors: sectoral systems. Sectoral systems are based on three building blocks: knowledge and technologies, actors and networks, and institutions. In the first part of this paper, the concept and the definition of a...