pt. I. Innovation capacity : a framework for analysis -- pt. II. A comparison of three cities : Barcelona, Copenhagen and Rotterdam -- pt. III. Conclusions : what supports innovation in city governments?

Intro -- Networking for Leaders -- Mapping Your Network -- Six Requirements of Leadership Networking -- Barriers to Building a Leadership Network -- Assessing Your Network -- Strategies for Developing Your Leadership Network -- Setting Goals and Taking Action -- Suggested Readings -- Background...

In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity of strong ties, we reject the hypothesis that weak ties...