This paper argues that the growth of large, efficient but anticompetitive superstar firms is responsible for the recent slowdown in US economic growth. The argument is based on the growth theory that we have previously developed and tested, which is based on the concept of creative destruction

This paper investigates the relationship between product market competition (PMC) and innovation. A Schumpeterian growth model is developed in which firms innovate ѳtep-by-stepҬ and where both technological leaders and their followers engage in R&D activities. In this model, competition...