The focus of this paper is on the incentives of firms to invest in research and development (R&D) when sequential moves are taken into account. Leading firms move before followers in investment and in output choices in a four stage game setting. Leaders may compete or cooperate in R&D with other...

In this article we study complementarity between market-enhancing product innovation and cost-reducing process innovation in a monopoly setting. First, we consider the possibility for a firm to alternatively invest only along one of the two directions and compare the incentives of process vs....