The impact of user innovation on social welfare isanalyzed by comparing user innovators to manufacturer innovators in terms oftheir innovation incentives and knowledge.Following a review of theliterature on product development by users, it is argued that the introductionof user innovation in a...

In this book I integrate new theory and new research findings into the framework of a “free innovation paradigm.” Free innovation involves innovations developed and given away by consumers as a “free good,” with resulting improvements in social welfare. I explain that free innovation is...

The literature on new goods and social welfare generally assumes that innovations are developed by manufacturers. 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...