カナザワ,ユウイチロウ   KANAZAWA, Yuichiro
  金澤 雄一郎
   所属   国際基督教大学教養学部 アーツ・サイエンス学科
   職種   教授
言語種別 英語
発行・発表の年月 1998
形態種別 研究論文
査読 査読あり
標題 MODELING THE PROFILES OF JAPANESE INDEPENDENT VOTERS IN THE EARLY 1996
執筆形態 共著
掲載誌名 Behaviormetrika
掲載区分国内
巻・号・頁 25(2),pp.133-149
著者・共著者 ◎Daisuke Fujita, Ikuo Kabashima
概要 This article illustrates that careful attention must be paid to “I do not know” (DK) answers when modeling the profiles and political inclinations of the Japanese independent voters. The DK answers, concentrated on answers to the questions regarding the support for the current cabinet and political ideology, are treated as missing because there is no valid reason to treat them as one separate category. We perform logistic regression analysis of binary response whether the interviewee has a political party to support or not on several political and economic explanatory variables, within which the EM algorithm is implemented. We found that missing-value problem could not be ignored in the sense that marginally significant or insignificant explanatory variables can easily turn otherwise when the same model is fitted only for the data with no missing-values.
DOI http://doi.org/10.2333/bhmk.25.133