The literature on new goods and social welfare generally assumes that manufacturers develop innovations. But innovation by users has been found to also be an important part of innovative activity in the economy. In this Paper we explore the impact of users as a source of innovation on product...

R&D incentives of new entrants to a market may be shaped by the prospects of being acquired by an incumbent. In this paper, we analyze a two-stage innovation game between one incumbent and a large number of entrants. In the first stage, firms compete to develop innovations of high quality. They...