Abstract
The role of regional areas for innovation has recently began to be reassessed. From the perspective of knowledge, areas are conceptualized as BA(place)of rich embedded knowledge. Beyond infrastnuctural moduls such as networks or clusters the concept of BA offers the opportunity to differentiate platforms supportive to specific processes of knowledge conversion in an area. In addition, the poly-agent theory emphasizes the subjects involved in regional knowledge creation. Finally the conceptual framework of regional knowledge creation is tentatively tested against data on Silicon Valley, Route 128 and Ohta-ku.
