Dynamic analysis on the R&D of manufacturers in Japan

To date, there has been no quantitative, statistically proven analysis of R&D dynamics, although there are other conceptual models that are neither quantitative nor statistical. This paper analyzes R&D patterns in noncore business areas of Japanese industries utilizing "the freezing rate" concept of R&D. The authors analyzed the frequency distribution of the Japanese manufacturers' R&D expenses invested in their noncore product fields for each industrial sector. They assumed that there are two kinds of patterns for the freezing rate of the R&D and examined into which pattern each of 21 sectors fell. They also developed an index about the degree R&D programs in each of the 21 sectors related to pure science.