Valuing Rice Qualities in Hokaido - From the Point of View of the Competitive Power in Rice Market

(1)目的和方法：评价产自北海道的大米Kirara 397。我们采用两个标准来评价Kirara 397的质量：主观标准，即北海道所有大米批发商和主要零售商的评价，客观标准，每10年的产量，大米等级（一级），天气因素和成本。我们采用另一个标准的商品特征的批发商：大米的质量，质量稳定，数量的大米地段和服务的农业合作社。综合指标由批发商和/或零售商的主观评价，应用层次分析法（AHP）。(2)主要结果：通过分析，我们得到了5个评价指标：1）批发商加权平均层次分析法划分的生产区，2）零售商加权平均层次分析法划分的生产区，3）批发商和零售商混合加权平均层次分析法划分的生产区，4）客观因素划分的生产区，5）生产成本划分的生产区。这些指标适合于北海道的实际水稻生产区。

(1) Purpose and Method : To evaluate the rice(Kirara 397) produced in Hokkaido. We employ two criteria in order to evaluate the Kirara 397's quality : subjective criterion, that is, evaluation by all rice wholesalers and major retailers in Hokkaido, and objective one, yield per 10 a, rice grade (first), weather factors and cost. We employ another standards of commodity characteristic of wholesalers : rice's quality, constant quality, volume of rice lots and services of Agricultural co-operative. The aggregated index obtained from wholesalers and/or retailer's subjective evaluations are applied by the method of AHP ( Analytic Hierarcy Process).(2) Main Results : There are five evaluation indexes we get : 1)production districts by weighted average AHP of wholesalers, 2) production districts by weighted average AHP of retailers, 3) production districts by mixed weighted average AHP of wholesalers and retailers, 4)production districts by objective factors and 5) production districts by production costs. These indexes are fit for actual rice production districts in Hokkaido.