TY - JOUR
T1 - Trends and volatilities in foreign patents registered in the USA
AU - Chan, Felix
AU - Marinova, D.V.
AU - Mcaleer, Michael
PY - 2004
Y1 - 2004
N2 - This study analyses the patent trends and volatilities for the top 12 foreign patenting countries in the US market from 1975 to 1997. Japan is ranked first in terms of foreign patents registered in the USA, followed by Germany. Patent registrations from each of these countries have increased steadily over time, but at different rates. Using monthly time series data for 1975-1997, the time-varying volatility of Australian, Japanese and German patents registered in the USA is examined in detail. The asymmetric AR(1)-GJR(1,1) model is found to be suitable for Australia and Japan, while the best fitting model for Germany is the symmetric AR(1)-GARCH(1,1) model.
AB - This study analyses the patent trends and volatilities for the top 12 foreign patenting countries in the US market from 1975 to 1997. Japan is ranked first in terms of foreign patents registered in the USA, followed by Germany. Patent registrations from each of these countries have increased steadily over time, but at different rates. Using monthly time series data for 1975-1997, the time-varying volatility of Australian, Japanese and German patents registered in the USA is examined in detail. The asymmetric AR(1)-GJR(1,1) model is found to be suitable for Australia and Japan, while the best fitting model for Germany is the symmetric AR(1)-GARCH(1,1) model.
U2 - 10.1080/0003684042000217625
DO - 10.1080/0003684042000217625
M3 - Article
SN - 0003-6846
VL - 36
SP - 585
EP - 592
JO - Applied Economics
JF - Applied Economics
ER -