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Investigation of the financial structure of the bubble period based on the unit roof contiguous processes with locally stationary high dimensional disturbance

Research Project

Project/Area Number 19K11857
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60030:Statistical science-related
Research InstitutionNiigata University

Principal Investigator

Hirukawa Junichi  新潟大学, 自然科学系, 准教授 (10386617)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords時系列解析 / 緩やかに爆発するモデル / 局所定常過程 / 金融工学 / 高次元データ / 非整数和分過程 / 長期記憶過程 / ランク検定 / 単位根周辺過程 / 大規模金融データ
Outline of Research at the Start

1次の自己回帰(AR(1))過程は,自己回帰係数の絶対値が 1 に近いとき単位根周辺過程と呼ばれる。特に,1 よりも大きいけれど,標本の数が多くなるにつれて 1 に緩やかに近づいていく場合に,緩やかに爆発する過程と呼ばれる。局所定常イノベーションを持つ緩やかに爆発する過程の漸近理論を導く。緩やかに爆発する過程により,バブル期の金融時系列データを記述し,バブル期の始まりと終焉の時期を識別するのに応用する。また,単位根近接過程についての古典的な結果も局所定常の場合に拡張することで,単位根周辺過程についての網羅的な漸近理論のフレームワークを構成する。

Outline of Final Research Achievements

We constructed the asymptotic theory of unit root related processes with locally stationary innovations. In particular, the asymptotic distribution of the least squares estimator was derived. We applied the slowly explosive processes to describe the financial time series data of the bubble period and to identify the beginning and the end of the bubble period. We extended the results of consistency and asymptotic normality of quasi-Gaussian maximum likelihood estimators for I(d) processes with positive parameters, which are long memory processes related to unit roots, to negative parameters. We derived weak convergence of partial sum processes of generalized near unit root processes with locally stationary innovations to CARMA processes. For the testing problem of null hypothesis of independence against the locally stationary MA alternative hypothesis, we applied the rank test statistic and derived the asymptotic distribution of the test statistic under the alternative hypothesis.

Academic Significance and Societal Importance of the Research Achievements

今後は,局所定常単位根周辺過程を一般化単位根周辺過程を含む形に一般化して,より広いクラスである局所定常一般化単位根周辺過程の理論を構成する。金融時系列データ等の多様性を記述することが可能になり,大規模金融データにおけるバブル期の経済構造やコロナ感染症の流行時期の特徴等をより詳細に説明できるようになる。投資市場やCovid データにおけるイベントの従属構造を局所定常一般化単位根周辺過程を用いて可視化する。局所定常一般化単位根周辺過程の理論を様々な非定常・非正則な時系列解析手法と組み合わせることによって,大規模かつ多種多様な金融時系列やコロナ感染症のデータへの応用が可能になるという意義がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2023 2022 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (16 results) (of which Int'l Joint Research: 13 results,  Invited: 11 results) Book (1 results)

  • [Journal Article] Rank Tests for Randomness Against Time-Varying MA Alternative2023

    • Author(s)
      Hirukawa, J., Sakai, S.
    • Journal Title

      In: Liu, Y., Hirukawa, J., Kakizawa, Y. (eds) Research Papers in Statistical Inference for Time Series and Related Models - Essays in Honor of Masanobu Taniguchi

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Testing linear relationships between non-constant variances of economic variables2020

    • Author(s)
      Hirukawa Junichi、Rassi Hamdi
    • Journal Title

      Economic Modelling

      Volume: 90 Pages: 182-189

    • DOI

      10.1016/j.econmod.2020.05.007

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2020

    • Author(s)
      Hirukawa Junichi, Lee Sangyeol
    • Journal Title

      Metrika

      Volume: 印刷中

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Innovation algorithm of fractionally integrated (I(d)) process and applications on the estimation of parameters2022

    • Author(s)
      Hirukawa, J., Fujimori, K.
    • Organizer
      5th International Conference on Econometrics and Statistics (EcoSta 2022), 於 Ryukoku University
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Weak convergence of the partial sum of I(d) process to a fractional Brownian motion in finite interval representation2022

    • Author(s)
      Hirukawa, J., Fujimori, K.
    • Organizer
      ROME- WASEDA TIME SERIES SYMPOSIUM, Villa Mondragone, Monte Porzio Catone (Rome)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Innovation algorithm of fractionally integrated (I(d)) process and applications on the estimation of parameters2022

    • Author(s)
      Hirukawa, J., Fujimori, K.
    • Organizer
      BOLOGNA-WASEDA TIME SERIES WORKSHOP, Accademia delle Scienze, Bologna
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Innovation algorithm of fractionally integrated (I(d)) process and applications on the estimation of parameters.2022

    • Author(s)
      Hirukawa, J., Fujimori, K.
    • Organizer
      ``Topological Data Science, Causality, Analysis of Variance, & Time Series'' 於 早稲田大学基幹理工学部
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Innovation algorithm of fractionally integrated (I(d)) process and applications on the estimation of parameters.2022

    • Author(s)
      Hirukawa, J., Fujimori, K.
    • Organizer
      ``Applications of Data Science in Social Science'' 於 東北大学
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] The self-weighted LAD estimator for unit root process with locally stationary innovations.2021

    • Author(s)
      Hirukawa, J., Akashi, F., Lee, S.
    • Organizer
      第三回日本統計研究所研究集会~様々な多様体上における統計的推測~ 於 法政大学
    • Related Report
      2021 Research-status Report
  • [Presentation] Weak convergence of the partial sum of $I(d)$ process to a fractional Brownian motion in finite interval representation2021

    • Author(s)
      Junichi Hirukawa and Kou Fujimori
    • Organizer
      科研費シンポジウム「統計科学の革新にむけて」於 金沢大学
    • Related Report
      2020 Research-status Report
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2020

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      STATISTICAL TOPOLOGICAL DATA ANALYSIS WORKSHOP, King Abdullah University of Science and Technology, Saudi Arabia
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2020

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      多様な高次元モデルにおける理論と方法論,及び,関連分野への応用 於 イーアスホール
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2019

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      Mini Workshop on TDA(Topological Data Analysis), Time Series & Statistics 於 早稲田大学
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Weak convergence of the partial sum of I(d) process to a fractional Brownian motion in finite interval representation2019

    • Author(s)
      Junichi Hirukawa and Kou Fujimori
    • Organizer
      3rd International Conference on Econometrics and Statistics, National Chung Hsing University, Taichung, Taiwan
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2019

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      2019 NBER-NSF Time Series Conference, The Chinese University of Hong Kong, Hong Kong
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Weak convergence of the partial sum of I(d) process to a fractional Brownian motion in finite interval representation2019

    • Author(s)
      Junichi Hirukawa and Kou Fujimori
    • Organizer
      科研費シンポジウム「多様な分野における統計科学に関する諸問題」(Problems related to statistical science in various fields) 於 コープシティ花園
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Weak convergence of the partial sum of I(d) process to a fractional Brownian motion in finite interval representation2019

    • Author(s)
      Junichi Hirukawa and Kou Fujimori
    • Organizer
      International Symposium on Theories and Methodologies, Tsukuba International Congress Center
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2019

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      Time-Series Seminar, Lancaster University, UK
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymptotic Properties of Mildly Explosive Processes with Locally Stationary Disturbance2019

    • Author(s)
      Junichi Hirukawa and Sangyeol Lee
    • Organizer
      CFE-CMStatistics 2019, University of London, UK
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] Research Papers in Statistical Inference for Time Series and Related Models - Essays in Honor of Masanobu Taniguchi2023

    • Author(s)
      (Editor) Liu, Y., Hirukawa, J., Kakizawa, Y.
    • Publisher
      Springer
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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