Wikipedia: Product innovation is defined as:
the development of new products, changes in design of established products, or use of new materials or components in the manufacture of established products[1]
Policy Studies Institute, University of Westminster. “Small Firms’ Innovation” (PDF). Retrieved 27 May 2010.
To read: Eisenhardt, K. and Tabrizi, B. 1995. Accelerating adaptive processes: product innovation in the global computer industry. Administrative Science Quarterly, Vol. 40, pp.84-110.
marchudson.net 