to the concentration, the outcome is more ambiguous, where it depends on the variety, both spillover rates, and the R … structure on innovation and output, as well as addressing mixed empirical results in this area. Both the effective R&D and total … industry output are shown to increase with the variety of industries, which is aligned with Jacobs externalities. With respect …

to derive the indicators of coherence, variety and cognitive distance. The latter is instead made operational in a …

bases, like coherence, cognitive distance and variety. By combining the literature on the knowledge spillovers of …

variety matter in shaping productivity dynamics. The check for spatial dependence suggests that cross-regional externalities … implications stem from the analysis, in that regional innovation strategies should be carefully coordinated so as to reach a higher …

This article has constructed a framework to analyze the relationship between national innovation investments …

(mainly its high concentration in the region Ile-de-France). It proposes an original model of regional growth in a knowledge …

innovation costs over time, and an inter-firm spillover, which lowers only the second comer’s R&D costs. This spillover exerts … range. When the size of the innovation is large, it implies under-investment. Hence, even in the presence of a moderate …

their innovation costs, and an inter-.rm spillover, that lowers only the second comer.s R&D cost. This spillover exerts its … the innovation size is large, it implies that the duopolistic market equi- librium involves underinvestment. Hence, even …

innovation costs over time, and an inter-firm spillover, which lowers only the second comer’s R&D costs. This spillover exerts … range. When the size of the innovation is large, it implies under-investment. Hence, even in the presence of a moderate …