World Cities of Scientific Knowledge: Systems, Networks and Potential Dynamics. An Analysis Based on Bibliometric Indicators.

The article discusses the pattern of the upper level of the world city network of knowledge as published in a series of earlier papers. The authors' aim is to update the findings and relate to the general world city discussion. The article addresses how the structure of the world cities of knowledge network has changed since 2000 in favour of south-east Asian and south European cities. The authors use bibliometric data on the world's 100 largest cities measured in terms of research output. The article also discusses the concept of world cities as an understanding that many cities are global service centres.