NISTEP has begun the activities for the revision of the existing macro-econometrical model in order to evaluate the economic effect on each field’s R&D investment since FY 2011. In FY 2011, the data related to each field’s knowledge stock, which are the basic data for the revision of the model, were collected and analyzed.
In “Survey of Research and Development” conducted by Statistics Bureau, Ministry of Internal Affairs and Communications, there are data of 8 fields’ R&D expenses. 8 fields are Life science, Information communication, Environment, Material, Nano-technology, Energy, Aerospace development and Ocean development. In addition to using the data of 8 fields’ R&D expenses, the data related to the time-lag between the results of research and their practical use and the data related to the obsolescence of the technologies in each field were collected and analyzed in order to estimate the knowledge stock on each field. And for the purpose of evaluating the extent of practical use quantitatively, the ratio of the number of each field’s academic papers quoted in the patents and the total number of each field’s academic papers was calculated on the trial basis.
