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The models for multi-way contingency tables and exact test using economic data

Research Project

Project/Area Number 19K14600
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 12040:Applied mathematics and statistics-related
Research InstitutionNihon University

Principal Investigator

IKI Kiyotaka  日本大学, 経済学部, 准教授 (30711593)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords数理統計学 / 多元分割表 / 対称性 / リスク資産データ / 正確検定 / 株価データ / 分割表解析 / 多変量解析 / 統計科学
Outline of Research at the Start

これまで多元分割表に対してセル確率の対称構造を表す様々なモデルが提案されてきたが、その多くは数理的な妥当性や整合性を求めるあまり、解釈がしにくいという難点があった。本研究では、日本の株価のデータを多元分割表の枠組みで表現し、株価の推移の対称構造について「解釈が容易な」モデルの提案を行う。さらに年ごとに作成される分割表の解析をそれぞれ行うことで、年代による確率構造の変化を明らかにする。作成される分割表は十分な観測度数が確保できないため、適合度検定におけるカイ二乗近似がうまくいかないおそれがある。したがって、小サンプルの下でも使用可能な正確検定の導出も試みる。

Outline of Final Research Achievements

In this study, we defined the sevens kinds of model of symmetry for a 3 * 3 * 3 * 3 contingency table. In order to investigate the goodness-of-fit the proposed model, we extracted the changes in the stock prices of companies listed on the First Section of the Tokyo Stock Exchange as analysis data. Focusing on the stock price in August 2009 and selecting the best fitting model by AIC, it was interpreted that the percentage of companies with a higher stock price in the 4th week than the stock price in the 1st week is equivalent to the percentage of companies with similar low stock prices. In other words, it can be seen that the ratio of companies whose stock prices have risen and those whose stock prices have fallen is equal in this month.

Academic Significance and Societal Importance of the Research Achievements

本研究では多元分割表に対して、数学的な妥当性はもちろんのこと、解釈のしやすさを念頭においてモデルの考案を行った。また、連続値を「意味のある差」に基づいていくつかのカテゴリに分類することで分割表を作成することを試みた。株価のデータを分割表に変換し解析を行うことで、分割表解析の観点から、新たな解釈を与えることに成功した。提案手法は経済データのみならず、医学、スポーツ科学、アンケート調査といった様々な分野に応用が可能である。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (3 results)

  • [Journal Article] An index for the degree and directionality of asymmetry for square contingency tables with ordered categories.2022

    • Author(s)
      Momozaki, T., Nakagawa, T., Iki, K. and Tomizawa, S.
    • Journal Title

      Austrian Journal of Statistics

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improved approximate unbiased estimators of the measure of departure from partial symmetry for square contingency tables.2021

    • Author(s)
      Nakagawa, T., Namba, R., Iki, K. and Tomizawa, S.
    • Journal Title

      SUT Journal of Mathematics

      Volume: 57 Pages: 167-183

    • NAID

      40022786469

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measure of departure from point-symmetry for the analysis of collapsed square contingency tables.2021

    • Author(s)
      Iki, K., Yamamoto, K. and Tomizawa S.
    • Journal Title

      Open Journal of Statistics

      Volume: 11 Pages: 1062-1071

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Directional measure for marginal homogeneity in square contingency tables with ordered categories2019

    • Author(s)
      Iki, K., Nakano, H. and Tomizawa, S.
    • Journal Title

      Biometrical Letters

      Volume: 56 Issue: 1 Pages: 1-11

    • DOI

      10.2478/bile-2019-0001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generalized diagonal exponent conditional symmetry models for square contingency tables with ordered categories2019

    • Author(s)
      Iki, K., Nemoto, D. and Tomizawa, S.
    • Journal Title

      Journal of Statistics: Advances in Theory and Applications

      Volume: 21 Issue: 2 Pages: 139-155

    • DOI

      10.18642/jsata_7100122063

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Two-dimensional measure vector of departure from marginal homogeneity in square contingency tables2019

    • Author(s)
      Ando, S., Takeuchi, T., Iki, K. and Tomizawa, S.
    • Journal Title

      Journal of Advanced Statistics

      Volume: 4 Issue: 3 Pages: 13-21

    • DOI

      10.22606/jas.2019.43001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 正方分割表における対称な累積確率に基づく 非対称性の尺度.2021

    • Author(s)
      桃崎智隆,中川智之,生亀清貴.
    • Organizer
      応用統計学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 順序カテゴリ正方分割表におけ る非対称性の程度と方向を測る尺度.2021

    • Author(s)
      桃崎智隆,中川智之,生亀清貴,富澤貞男.
    • Organizer
      日本分類学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 正方分割表における倹約な2変量t分布型対称モデル2020

    • Author(s)
      生亀清貴
    • Organizer
      日本数学会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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