This paper examines empirically the relationship between innovation and market structure within a simultaneous … concentration. In contrast, competition enforces innovation, i.e. sales concentration has a negative impact on R&D. …

This paper develops an innovation model where firms choose which research paths to follow. Contrary to most of the … literature which focuses only on the level of investment in innovation, this model captures both the variety of research paths …

I study the relationship between competition and innovation, focusing on the distinction between product and process … innovations. By considering product innovation, I expand upon earlier research on the topic of the relationship between … competition and innovation, which focused on process innovations. New products allow firms to differentiate themselves from one …

concentration upon innovation, focusing on robust findings, questions of interpretation, and the identification of major gaps. We … also consider the more modest literature that considers the effect on innovation of firm characteristics other than size …