Industrial classifications offer arguably poor schemes for classifying innovative activity. Moreover, a single measure incorporating technological relatedness between the inherent classes, captures the neglected issue of Jacobs (1969) and Marshall (1920), that the degree of relatedness of...

This paper examines the effects of regional R&D on patenting for Sweden within an accessibility framework. We use two measures of patenting: number of patents granted per capita and a composite of quality-adjusted patents which we regard as an innovation indicator, respectively. Three...

We use a comprehensive database of Swedish manufacturing and service firms to examine trends in aggregate and sectoral research productivity 1985-1998, defined as the ratio between patenting and R&D. Quality indices are composed of forward and backward citations, family size and opposition. In...

This paper examines the effects of regional R&D on patenting for Sweden within an accessibility framework. We use two measures of patenting: number of patents granted per capita and a composite of quality-adjusted patents which we regard as an innovation indicator, respectively. Three...

Recent empirical evidence strongly supports Jacobs’ (1969) externality hypothesis, that urban diversity provides a more favorable environment for economic development. In order to correctly gauge Jacobs’ hypothesis, economic development should be understood as a result of innovations....

This paper examines the effects of regional R&D on patenting for Sweden within an accessibility framework. We use two measures of patenting: number of patents granted per capita and a composite of quality-adjusted patents which we regard as an innovation indicator, respectively. Three...

We use a comprehensive database of Swedish manufacturing and service firms to examine trends in aggregate and sectoral research productivity 1985-1998, defined as the ratio between patenting and R&D. Quality indices are composed of forward and backward citations, family size and opposition. In...