Buyer power is widely considered to decrease innovation incentives of suppliers. However, there is little empirical evidence for this statement. Our paper analyses how buyer power influences innovation incentives of upstream firms while taking into account the type of competition in the...

We study the gains from trade in a model with oligopolistic competition, heterogeneous firms and innovation, and provide a formula to decompose the mechanism. The new insight we provide is that market concentration can be a welfare-relevant feature of market power above and beyond markup...