In this paper we employ techniques developed in spatial econometrics to analyse spatial patterns of technology … clustered over time, suggesting the possibility that technology levels are converging locally. Estimation of spatial versions of …

The analysis in this paper shows that unpredictable variations in economic productivity may have a positive or negative …. Empirical studies concerning these two factors indicate that unpredictable variations in economic productivity have a negative …

How does risk or uncertainty in the productivity of research affect the growth rate of the economy? To answer this …&D from profit-maximizing firms. The uncertainty arises from the productivity of these investments in R&D. The main result of … this analysis is that the relationship between long-run growth and uncertainty (on the productivity of knowledge creation …

The importance of knowledge spillovers for achieving innovation and economic growth is widely recognized. It is not … this controversy using a model of regional growth. The model also deals with the impact of local competition on innovation …

. The impacts of advances in information technology are examined explicitly in this model. While the relevant theoretical … and empirical literature analyses the impact of technological progress with respect to changes in regional productivity … information technology, is constructed using the aforementioned framework. Consequently, this approach provides an account for the …

dirty technology can be unlocked and move towards the clean technology. The main extension involves the inclusion of the … effect of recombinant innovation of the two technologies. A mechanism of endogenous competition is described involving a … positive externality of increasing returns to investment which are counterbalanced by recombinant innovation. We determine …