Structural change and the knowledge-base economy : an international overview -- 2.structural change and the long run dynamics of economic growth -- The economics of technological knowledge -- Structural change and knowledge structure : an integrated framework -- The implementation of knowledge structure methodological implicatioin -- The internal structure of technological knowledge and productivity growth : cross-country evidence from the ICT sector -- Evolutionary patterns of knowledge structure in biotechnology -- Knowledge, structural change and productivity : a special focus on Italian regions -- The co-evolution of knowledge and economic structure. Evidence from European regions -- Conclusion.