Hamilton, and Olivastro (1997) show the growing linkage between U.S. technol-
ogy and public science by illustrating the increasing dependence over time of
patented technology on scientific papers. This paper considers the potential eco-
nomic relevance of CI, NPR, and TCT indicators of patent quality. CI and NPR
are technology impact indicators because they reflect the extent to which a firm’s
patenting activity forms the basis for subsequent science. They are economic
indicators to the extent that patents with high technological importance also have
significant economic importance and consistently positive effects on the market
value of the firm. The expected ...
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