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Elaborating policy evaluation in stochastic discrete-choice models

Research Project

Project/Area Number 15K20924
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Economic theory
Economic policy
Research InstitutionTokyo University of Science (2016-2018)
The University of Tokyo (2015)

Principal Investigator

Fujishima Shota  東京理科大学, 経営学部ビジネスエコノミクス学科, 講師 (50706835)

Research Collaborator Akamatsu Takashi  
Takayama Yuki  
Oyama Daisuke  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords都市・地域経済学 / 空間経済学 / 空間相互作用モデル / 進化ゲーム理論 / 離散選択モデル
Outline of Final Research Achievements

Urban economic models, where people choose locations of their residence, generally have multiple equilibria because both positive externalities from agglomeration economies and negative externalities from congestion arise. Simultaneously, policy discussions are important because equilibrium is generally inefficient, owing to the presence of externalities. However, under the presence of multiple equilibria, an economy does not necessarily move to the efficient state where social welfare is maximized, even if a policy is implemented. This project shows that stable equilibrium can be unique for the following two cases: when the spatial unit of areas over which people choose to locate is small and when people have forward-looking expectations.

Academic Significance and Societal Importance of the Research Achievements

政策評価は,経済学が現実問題に貢献しうる1つの重要な分野である.複数均衡が生じるモデルを用いた政策評価がいかなるケースにおいて妥当性を有するのかについては未解決の部分が多く,この点について理解を深めることができたのが本研究の社会的・学術的意義として挙げられる.さらに,政策評価は経済学のみならず土木計画学などの他分野でも研究されており,本研究の学術的意義は経済学にとどまるものではない.

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

    (7 results)

All 2018 2017 2016 2015

All Journal Article (4 results) (of which Open Access: 3 results,  Peer Reviewed: 1 results) Presentation (3 results)

  • [Journal Article] Equilibrium Dynamics in a Model of Growth and Spatial Agglomeration2018

    • Author(s)
      Shota Fujishima, Daisuke Oyama
    • Journal Title

      SSRN

      Volume: 3290371 Pages: 1-47

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] Discrete-space agglomeration model with social interactions: Multiplicity, stability, and continuous limit of equilibria2017

    • Author(s)
      Takashi AKAMATSU, Shota FUJISHIMA, Yuki TAKAYAMA
    • Journal Title

      Journal of Mathematical Economics

      Volume: 69 Pages: 22-37

    • DOI

      10.1016/j.jmateco.2016.12.007

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Discrete-Space Social Interaction Models: Stability and Continuous Limit2015

    • Author(s)
      Takashi Akamatsu, Shota Fujishima, Yuki Takayama
    • Journal Title

      MPRA Working Paper

      Volume: 65225 Pages: 1-31

    • Related Report
      2015 Research-status Report
    • Open Access
  • [Journal Article] Evolutionary Implementation with Estimation of Unknown Externalities2015

    • Author(s)
      Shota Fujishima
    • Journal Title

      CSIS Discussion Paper

      Volume: 132 Pages: 1-36

    • Related Report
      2015 Research-status Report
    • Open Access
  • [Presentation] Equilibrium Dynamics in a Model of Growth and Spatial Agglomeration2017

    • Author(s)
      Shota Fujishima
    • Organizer
      Economic Theory Workshop
    • Related Report
      2017 Research-status Report
  • [Presentation] Equilibrium Dynamics in a Model of Growth and Spatial Agglomeration2017

    • Author(s)
      藤嶋翔太
    • Organizer
      ゲーム理論セミナー
    • Related Report
      2017 Research-status Report
  • [Presentation] Discrete-space agglomeration model with social interactions: Multiplicity, stability, and continuous limit of equilibria2016

    • Author(s)
      藤嶋翔太
    • Organizer
      応用地域学会研究発表大会
    • Place of Presentation
      神戸大学六甲台2キャンパス(兵庫県神戸市)
    • Year and Date
      2016-11-26
    • Related Report
      2016 Research-status Report

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

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