Innovations and market structure in West German industries

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Abstract
The authors analyse the relationship between industry concentration and industry's R&D and innovative activities, for West German industries during the period 1965–1977. The most striking result produced by a single equation model and a simultaneous equations model is the adverse impact of size and industry concentration on productivity growth. On the other hand, however, both size and concentration give rise to faster growth of sales which in turn enhances productivity growth.

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