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Trends and volatility in Japanese patenting in the USA: An analysis of the electronics and transport industries

Marinova, D. and McAleer, M. (2002) Trends and volatility in Japanese patenting in the USA: An analysis of the electronics and transport industries. Scientometrics, 55 (2). pp. 171-187.

Link to Published Version: http://dx.doi.org/10.1023/A:1019611623033
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Abstract

This paper analyses trends and volatility in patenting in USA by Japan in the electronics/electrical and motor vehicle/transport epuiqment industries. The number of patents has increased steadily, with the two industries accounting in 1997 for one-half of Japanese patents in USA. The electronics/electrical industry has been a much stronger performer, with a share of 30% of US patents, compared with 20% for motor vehicle/transport epuiqment. Using monthly data for 1975-1997, the time-varying nature of the volatility of patents registered in the USA is examined. The asymmetric AR(1)-GJR(1,1) model is found to be suitable for motor vehicle/transport epuiqment, whereas the AR(1)-GARCH(1,1,) and AR(1)-GJR(1,1) models provide interesting results for electronics/electrical.

Item Type: Journal Article
Murdoch Affiliation: Institute for Sustainability and Technology Policy
Publisher: Springer Verlag
URI: http://researchrepository.murdoch.edu.au/id/eprint/34188
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