<P>This book responds to a growing demand in the academic community for a focus on customer-related proactive behaviour in the study of radical innovation development, combining a thorough theoretical discussion with detailed international case studies considering the role of this proactivity in five firms engaged in the process. </P><P></P><P>Unlike other studies in this area, this book demonstrates that anticipation plays an important role at the idea generation stage and Sandberg introduces a new way of describing a firm¿s proactivity as a dynamic pattern. Furthermore, the deeper consideration of customer related proactivity contributes to the study of market orientation, which increasingly focuses on the proactive side. </P><P></P><P> </P>