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Theory and its appliction of nonparametric and semiparametric estimation and inference under shape constraint

Research Project

Project/Area Number 20K01598
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 07030:Economic statistics-related
Research InstitutionWaseda University

Principal Investigator

Arai Yoichi  早稲田大学, 社会科学総合学術院, 准教授 (50376571)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsセミパラメトリック / ノンパラメトリック / 推定 / 検定 / 形状制約 / 単調性 / シングルインデックスモデル
Outline of Research at the Start

本研究では、数ある形状制約の 中から単調性に注目し、一段階目で形状制約を用いたノンパラメトリック推定を行う。さらに二段 階目では、一段階目のノンパラメトリック推定量を用いて政策効果などのパラメータのセミパラメ トリック推定量を提案する。このような推定量として新しい一般化最小二乗法と傾向スコアを用い たマッチング推定量を提案する。また、経験過程の理論を用いた漸近理論、漸近的効率性の理論を 構築する。

Outline of Final Research Achievements

We proposed a generalized least squared (GLS) estimator with monotone restriction under the heteroskedasticity. We employ the isotonic regression in the first stage and use the isotonic regression estimator as a weight for the second stage. We show that the GLS estimator is emiparametrically efficient. The proposed GLS estimator does not require any smoothing parameters and it is computationally attractive. Our simulation shows that the GLS estimator is superior to nonparametric GLS estimators and robust approaches.

Academic Significance and Societal Importance of the Research Achievements

本研究ではいくつかの重大な欠点のため最近用いられることの少なくなった一般化最小事情推定量に注目した。欠点を形状制約を用いることにより解決し、現実的で非常に優れた推定量を提案した。現在、広く用いられている頑健な分散推定量を用いたアプローチよりかなり効率的な推定を行うことができ、実証研究において広く用いられることが期待される。本研究で提案された一般化最小二乗推定量の第一段階目では推定された変数を被説明変数として用いている。この一般化は新しい結果であり、一般化最小二乗法だけでなくその他の統計的な問題に広く用いることができる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 2022 Other

All Int'l Joint Research (6 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Int'l Joint Research] London School of Economics(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Mannheim(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] London School of Economics(英国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of Mannheim(ドイツ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] London School of Economics(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Mannheim(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Testing identifying assumptions in fuzzy regression discontinuity designs2022

    • Author(s)
      Arai Yoichi、Hsu Yu-Chin、Kitagawa Toru、Mourifi? Ismael、Wan Yuanyuan
    • Journal Title

      Quantitative Economics

      Volume: 13 Issue: 1 Pages: 1-28

    • DOI

      10.3982/qe1367

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] GLS under Monotone Heteroskedasticity2024

    • Author(s)
      Yoichi Arai
    • Organizer
      Spring Econometrics Forum
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GLS under Monotone Heteroskedasticity2024

    • Author(s)
      Yoichi Arai
    • Organizer
      Econometrics Seminar, University of Arizona
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GLS under Monotone Heteroskedasticity2023

    • Author(s)
      Yoichi Arai
    • Organizer
      Econometric Society European Meeting (Barcelona)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Remarks] GLS under Monotone Heteroskedasticity

    • URL

      https://arxiv.org/abs/2210.13843

    • Related Report
      2023 Annual Research Report 2022 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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