This paper studies the impact of cooperative R&D on innovation, welfare, and profitability in vertically related industries with differentiated products. The model incorporates two vertically related industries, with horizontal spillovers within industries and vertical spillovers between them....

In a linear model of cost reducing R&D/Cournot competition, firm asymmetry is shown to be sustainable as subgame perfect Nash equilibrium with R&D competition only if the productivity of research is sufficiently large relative to the benefits from imitation. In such a case, industry-wide cost...