In this paper, we describe the results of an inquiry into the nature of appropriability conditions in over one hundred manufacturing industries, and we discuss how this information has been and might be used to cast light on important issues in the economics of innovation and public policy. Our...

The set of technological opportunities in a given industry is one of the fundamental determinants of technical advance in that line of business. We examine the concept of technological opportunity and discuss three categories of sources of those opportunities: advances in scientific...

The concept of technological opportunity is examined and the following three categories of technological opportunity sources are discussed: (1) advances in scientific understanding and technique which expand the pool of technological opportunities, (2) technological advances that originate in...