What factors underlie industry differences in research intensity and productivity growth? We develop a multi-sector endogenous growth model allowing for industry specific parameters in the production functions for output and knowledge, and in consumer preferences. We find that industry...

The purpose of this paper is to analyze both theoretically and empirically those factors which underlay the - empirically observable - inter-industry differences in technical progress. At the theoretical level economists agree more and more that technical progress can be explained at the...

Economists have managed to find a positive impact of R&D efforts on productivity. However, the empirical results of their studies have not explained the observed sectoral differences in this important impact. With due reference to three global industries, namely, chemical, computer, and...

This study aims to demonstrate that the concentration (or distribution) of firm R&D intensities within an industry is closely related to the overall R&D intensity of the industry. Unlike the well-studied relationship between sales concentration, or market structure, and industry R&D intensity,...

Numerous attempts have been made to account for cross-industries differences in technological efforts; most of them have been accomplished along the lines of the structure-conduct-performance hypothesis. It is our purpose to reverse such an approach in the light of the latest theoretical and...

The article presents a model of technological opportunity, modeled as a resource that is exhaustible in the short run but renewable in the long run. The exploitation and regeneration of technological opportunity is the result of an interplay between intentional incremental and radical...

What factors underlie industry differences in research intensity and productivity growth? We develop a multi-sector endogenous growth model allowing for industry-specific parameters in the production functions for output and knowledge, and in consumer preferences. We find that long run industry...

We derive an R&D-based semi-endogenous growth model where technological progress depends on the available amount of technological opportunity. Incremental innovations provide direct increases in the knowledge stock but they reduce technological opportunity and thus the potential for further...

We derive an R&D-based semi-endogenous growth model where technological progress depends on the available amount of technological opportunity. Incremental innovations provide direct increases in the knowledge stock but they reduce technological opportunity and thus the potential for further...

This paper evaluates whether the relative concentration of funding for small, research-oriented firms in a small number of high-technology industries is related to differences across industries in the appropriability level facing small firms. We exploit a novel test based on the relationship...