Using the example of rice species improvement, essentially R&D in agricultural species improvement, this paper proposes an evaluation method especially set up to clarify the specific economic effects (impacts) to whole Japan of R&D in agricultural technology. It then formulates a system for classifying the effects of the said technology, develops a method for calculating the economic effects according to the specific effects targeted, and introduces practical calculation examples. For evaluating the economic effect on rice species improvement technology, the author referred to data from a previous survey by Mitsubishi Research Institute, Inc. (MRI) commissioned to MRI by the Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries in order to evaluate the economic effect of R&D in rice species development as part of the "Survey Regarding Evaluations Made of Past Technology Development Programs", an FY 2000 project set up to support the introduction of administrative procedures related to new agricultural policies. Specifically, the author targeted the yield improvement and product taste improvement effects (including the resulting price increase), and evaluated the economic effects, respectively, by estimating the extent to which a new species contributes to yield improvement and determining the relationship between taste score and market price. As a result, it was shown that the method to evaluate economic effect proposed in this paper can apply effectively.
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