Abstract
This study examines time-period and industry heterogeneity of innovation activity in Japan from 1964 to 2006 using patent data and non-consolidated firm data. This study focuses on the following three periods, based on changes of the Japanese patent system, in and non-manufacturing industries: (I) before 1976; (II) 1976-1987; and (III) after 1988. Specifically, for each degree of patent protection in each industry, this study examines how innovation activities are affected by the following determinants found in the innovation literature: size, market competition, and search variety (depth and scope). Empirical results show that when using the entire sample from 1964 to 2006, the size effect on innovation is significantly positive. In addition, the effects of market competition and search variety on innovation are inverse-U. When considering time-period heterogeneity, the effects of size and search variety are similar to the entire period; however, the inverse-U effect of market competition is broken after 1988. On the other hand, when considering industry heterogeneity, the effects of size and search variety are similar to the entire sample, but differ between manufacturing and non-manufacturing industries. In addition, the effect of market competition is not statistically significant in either industry.
| Original language | English |
|---|---|
| Pages (from-to) | 100-119 |
| Number of pages | 20 |
| Journal | Economic Analysis and Policy |
| Volume | 50 |
| DOIs | |
| Publication status | Published - Jun 1 2016 |
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All Science Journal Classification (ASJC) codes
- Economics and Econometrics
- Economics, Econometrics and Finance (miscellaneous)
Cite this
Time-period and industry heterogeneity of innovation activity in Japan. / Yagi, Michiyuki; Managi, Shunsuke.
In: Economic Analysis and Policy, Vol. 50, 01.06.2016, p. 100-119.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Time-period and industry heterogeneity of innovation activity in Japan
AU - Yagi, Michiyuki
AU - Managi, Shunsuke
PY - 2016/6/1
Y1 - 2016/6/1
N2 - This study examines time-period and industry heterogeneity of innovation activity in Japan from 1964 to 2006 using patent data and non-consolidated firm data. This study focuses on the following three periods, based on changes of the Japanese patent system, in and non-manufacturing industries: (I) before 1976; (II) 1976-1987; and (III) after 1988. Specifically, for each degree of patent protection in each industry, this study examines how innovation activities are affected by the following determinants found in the innovation literature: size, market competition, and search variety (depth and scope). Empirical results show that when using the entire sample from 1964 to 2006, the size effect on innovation is significantly positive. In addition, the effects of market competition and search variety on innovation are inverse-U. When considering time-period heterogeneity, the effects of size and search variety are similar to the entire period; however, the inverse-U effect of market competition is broken after 1988. On the other hand, when considering industry heterogeneity, the effects of size and search variety are similar to the entire sample, but differ between manufacturing and non-manufacturing industries. In addition, the effect of market competition is not statistically significant in either industry.
AB - This study examines time-period and industry heterogeneity of innovation activity in Japan from 1964 to 2006 using patent data and non-consolidated firm data. This study focuses on the following three periods, based on changes of the Japanese patent system, in and non-manufacturing industries: (I) before 1976; (II) 1976-1987; and (III) after 1988. Specifically, for each degree of patent protection in each industry, this study examines how innovation activities are affected by the following determinants found in the innovation literature: size, market competition, and search variety (depth and scope). Empirical results show that when using the entire sample from 1964 to 2006, the size effect on innovation is significantly positive. In addition, the effects of market competition and search variety on innovation are inverse-U. When considering time-period heterogeneity, the effects of size and search variety are similar to the entire period; however, the inverse-U effect of market competition is broken after 1988. On the other hand, when considering industry heterogeneity, the effects of size and search variety are similar to the entire sample, but differ between manufacturing and non-manufacturing industries. In addition, the effect of market competition is not statistically significant in either industry.
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U2 - 10.1016/j.eap.2016.03.002
DO - 10.1016/j.eap.2016.03.002
M3 - Article
AN - SCOPUS:84961880604
VL - 50
SP - 100
EP - 119
JO - Economic Analysis and Policy
JF - Economic Analysis and Policy
SN - 0313-5926
ER -