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Patents as a Measure of Innovative Activity

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  • Acs, Zoltan J
  • Audretsch, David B

Abstract

The authors test whether a measure of patent activity in the United States is a reliable proxy for innovative activity. They introduce a production function for patented inventions based on knowledge, firm size, and the ease of appropriability. The results are then compared with those from their 1988 paper using a direct measure of innovative activity. Patents are found to vary with company R&D, total R&D, and skilled labor in the same manner as does innovative activity. In general, the results support the validity of patent counts as a measure of innovative activity. Copyright 1989 by WWZ and Helbing & Lichtenhahn Verlag AG

Suggested Citation

  • Acs, Zoltan J & Audretsch, David B, 1989. "Patents as a Measure of Innovative Activity," Kyklos, Wiley Blackwell, vol. 42(2), pages 171-180.
  • Handle: RePEc:bla:kyklos:v:42:y:1989:i:2:p:171-80
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    References listed on IDEAS

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