-by-step innovation. Innovations result from costly R&D investments and move technology up one step. Competition is inversely measured by …-and-neck. All these results are consistent with the predictions of step-by-step innovation models …

-by-step innovation. Innovations result from costly R&D investments and move technology up one step. Competition is inversely measured by …-and-neck. All these results are consistent with the predictions of step-by-step innovation models …

This paper investigates the relationship between product market competition (PMC) and innovation. A Schumpeterian …, competition may also reduce innovation incentives for laggards. This model generates four main predictions which we test … empirically. First, the relationship between product market competition (PMC) and innovation is an inverted U-shape: the escape …