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Research on stochastic games with infinite expectation

Research Project

Project/Area Number 15K05001
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Foundations of mathematics/Applied mathematics
Research InstitutionFukuoka University of Education

Principal Investigator

Nakata Toshio  福岡教育大学, 教育学部, 教授 (10304693)

Research Collaborator SHIMURA takaaki  統計数理研究所, 数理・推論研究系, 准教授 (40235677)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords無限大の期待値 / 大数の弱法則 / ペテルスブルグのゲーム / 正則変動 / 裾確率 / 極値分布 / Pareto 分布 / 重み付きの大数の法則
Outline of Final Research Achievements

This research explored probability distributions for stochastic games with infinite expectation which contain the St. Petersburg game as a typical example.
We defined several non-negative heavy-tailed probability distributions, and obtained some limit theorems such as weighted laws of large numbers. We also got a limit theorem for the maxima of independent random variables for the generalized St. Petersburg games. The results of this research reveal some of the properties of heavy-tailed distributions.

Academic Significance and Societal Importance of the Research Achievements

2018年には地震や大雨などの想定外の自然災害が日本列島を襲った。通常ではほとんど起きないと思われている事象であるものの、一旦起きてしまえば極端な値をとることが特徴であり、確率論として捉えるときには期待値が発散するような重い裾をもつ確率分布を用いてモデル化される。本研究はこのことについての理論的な研究の一つとして位置づけられる。自然災害の規模を具体的に評価するなどというような応用研究には直接的に結びつかないかもしれないが、基礎的研究として僅かに貢献できたとものと考えている

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (15 results)

All 2018 2017 2016 2015

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (12 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] A note on the asymptotics of the maxima for the St. Petersburg game2017

    • Author(s)
      Toshio Nakata
    • Journal Title

      Stat. Prob. Lett.

      Volume: 129 Pages: 284-287

    • DOI

      10.1016/j.spl.2017.06.010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Exact laws of large numbers for independent Pareto random variables2017

    • Author(s)
      Toshio Nakata
    • Journal Title

      Bull. Inst. Math. Acad. Sinica (N.S.)

      Volume: 12 Issue: 4

    • DOI

      10.21915/bimas.2017403

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Weak laws of large numbers for weighted independent random variables with infinite mean2016

    • Author(s)
      Toshio Nakata
    • Journal Title

      Stat. Prob. Lett.

      Volume: 109 Pages: 124-129

    • DOI

      10.1016/j.spl.2015.11.017

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Laws of large numbers for independent Pareto random variables with infinite mean2018

    • Author(s)
      Toshio Nakata
    • Organizer
      12th International Vilnius Conference on Probability Theory and Mathematical Statistics and 2018 IMS Annual Meeting on Probability and Statistics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 期待値の発散するパレート分布についての重みつきの大数の法則2018

    • Author(s)
      中田寿夫
    • Organizer
      共同研究集会「無限分解可能過程に関連する諸問題」
    • Related Report
      2018 Annual Research Report
  • [Presentation] The maxima for the generalized St.Petersburg game2018

    • Author(s)
      中田寿夫
    • Organizer
      日本数学会2018年度年会
    • Related Report
      2017 Research-status Report
  • [Presentation] The asymptotics of the maxima for the distribution of the St. Petersburg game2017

    • Author(s)
      中田寿夫
    • Organizer
      The 10th international conference on Extreme Value Analysis
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The maxima for the generalized St.Petersburg game2017

    • Author(s)
      中田寿夫
    • Organizer
      統計数理研究所 共同研究集会「無限分解可能過程に関連する諸問題」
    • Related Report
      2017 Research-status Report
  • [Presentation] Discrete distributions whose truncated means have logarithmic order2017

    • Author(s)
      志村隆彰
    • Organizer
      The 10th international conference on Extreme Value Analysis
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 無限大の期待値をもつ重みつきの独立な確率変数列に関する大数の弱法則2016

    • Author(s)
      中田寿夫
    • Organizer
      日本数学会2016年度年会
    • Place of Presentation
      筑波大学 (茨城県つくば市)
    • Year and Date
      2016-03-16
    • Related Report
      2015 Research-status Report
  • [Presentation] Weak laws of large numbers for weighted independent random variables with infinite mean2016

    • Author(s)
      Toshio Nakata
    • Organizer
      World Congress in Probability and Statistics
    • Place of Presentation
      University of Toronto (トロント(カナダ))
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Variety of distributions with asymptotically logarithmic truncated mean2016

    • Author(s)
      Takaaki Shimura
    • Organizer
      World Congress in Probability and Statistics
    • Place of Presentation
      University of Toronto (トロント(カナダ))
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 期待値が発散する確率変数列の極限定理2016

    • Author(s)
      中田寿夫
    • Organizer
      第135回 日本数学会九州支部例会
    • Place of Presentation
      長崎大学 (長崎県長崎市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 切断平均が対数オーダーとなる離散的な分布に関する最大値の性質について2016

    • Author(s)
      中田寿夫
    • Organizer
      共同研究集会「無限分解可能過程に関連する諸問題」
    • Place of Presentation
      統計数理研究所 (東京都立川市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 無限大の期待値をもつ重みつきの独立な確率変数列に関する大数の弱法則 の例2015

    • Author(s)
      中田寿夫
    • Organizer
      無限分解可能過程に関連する諸問題
    • Place of Presentation
      統計数理研究所 (東京都立川市)
    • Year and Date
      2015-12-04
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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