Josef Taalbi
Senior lecturer
Evolution and structure of technological systems : An innovation output network
Author
Summary, in English
This study examines the network of supply and use of significant innovations across industries in Sweden, 1970-2013. It is found that 30% of innovation patterns can be predicted by network stimulus from backward and forward linkages. The network is hierarchical, characterized by hubs that connect diverse industries in closely knitted communities. To explain the network structure, a preferential weight assignment process is proposed as an adaptation of the classical preferential attachment process to weighted directed networks. The network structure is strongly predicted by this process where historical technological linkages and proximities matter, while human capital flows and economic input-output flows have conflicting effects on link formation. The results are consistent with the idea that innovations emerge in closely connected communities, but suggest that the transformation of technological systems is shaped by technological requirements, imbalances and opportunities that are not straightforwardly related to other proximities.
Department/s
- Department of Economic History
Publishing year
2018
Language
English
Publication/Series
ARXIV
Issue
1811.06772v1
Document type
Other
Publisher
arXiv.org
Topic
- Economic History
Keywords
- Innovation
- Network evolution
- Technological systems
Status
Published