Patent Statistics as Economic Indicators: A Survey / Zvi Griliches.

Format:

Book

Author/Creator:

Griliches, Zvi.

Contributor:

National Bureau of Economic Research.

Series:

Working Paper Series (National Bureau of Economic Research) no. w3301.

NBER working paper series no. w3301

Language:

English

Physical Description:

1 online resource: illustrations (black and white);

Other Title:

Patent Statistics as Economic Indicators

Place of Publication:

Cambridge, Mass. National Bureau of Economic Research 1990.

Summary:

This survey reviews the growing use of patent data in economic analysis. After describing some of the main characteristics of patents and patent data, it focuses on the use of patents as an indicator of technological change. Cross-sectional and time-series studies of the relationship of patents to R&D expenditures are reviewed, as well as scattered estimates of the distribution of patent values and the value of patent rights, the latter being based on recent analyses of European patent renewal data. Time-series trends of patents granted in the U.S. are examined and their decline in the 1970s is found to be an artifact of the budget stringencies at the Patent Office. The longer run downward trend in patents per R&D dollar is interpreted not as an indication of diminishing returns but rather as a reflection of the changing meaning of such data over time. The conclusion is reached that, in spite of many difficulties and reservations, patent data remain a unique resource for the study of technical change.

Notes:

March 1990.

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