Actor-oriented analysis of innovation systems: exploring micro-meso level linkages in the case of stationary fuel cells

The innovation systems approach has been successfully established as a conceptual basis for an encompassing analysis of actors, networks and institutions that influence innovation processes. Here we present an approach that concentrates on the actors in a selected technological innovation system. The intention is to specify current or potential contributions of actors, or actor groups, to innovation system performance and dynamics. This will be achieved by explicitly relating actor level characteristics such as innovation strategies and resource endowments to system level characteristics like actor configurations, system functions and performance. We illustrate the approach with a case study on stationary fuel cells in Germany.