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Fronteers of the Search Theory

Research Project

Project/Area Number 15K03355
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Economic theory
Research InstitutionKyushu University

Principal Investigator

IMAI Ryoichi  九州大学, 留学生センター, 准教授 (10298507)

Co-Investigator(Kenkyū-buntansha) 工藤 教孝  名古屋大学, 経済学研究科, 教授 (80334598)
宮本 弘暁  東京大学, 大学院公共政策学連携研究部・教育部, 特任准教授 (10348831)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsサーチ理論 / 医療 / 産業組織 / 中古市場 / サーチ / 労働経済 / 医療経済 / 住宅取引 / 労働市場 / 貨幣理論 / 住宅市場モデル
Outline of Final Research Achievements

The project has reviewed the current research trends of the search theory, and explored its applications in variety of decentralized markets, where there is no auctioneer nor aggreate balancing mechanism. The field was awarded with a Nobel Prize for Economics in 2010. Our research has extended the application toward new front lines as follows.
(1) Payroll taxes affect the productivity distribution of jobs in the decentralized labor market. (2) Housing market institutions affect the distribution of contract types such as rental and holding. (3) Medical insurance works as subisidies for the suppliers, and raises the gap between the supplier price and the consumer price.

Academic Significance and Societal Importance of the Research Achievements

市場経済には為替取引や資源取引のように集権的で大規模な市場もあるが、たいていの取引は、分権的で局所的である。前者のような集権的取引では、総需要と総供給を集計して均等化するように取引価格が決まるけれど、分権的取引では、市場価格は、個々の局所的取引価格の平均としてしか捉えることができない。このような分権的取引の性格をうまく捉えてモデル化して、様々な応用課題の解を提示するのがサーチ理論分析である。分権的取引の具体例として、労働、金融(貸出)、医療、住宅、家電、自動車などがあり、家計の経済生活の大半に関わってくる。

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

    (9 results)

All 2019 2018 2017 2016 Other

All Journal Article (5 results) (of which Open Access: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Remarks (2 results) Funded Workshop (1 results)

  • [Journal Article] 長期停滞論とネオ・フィッシャー効果2019

    • Author(s)
      今井亮一
    • Journal Title

      九州大学留学生センター紀要

      Volume: 27 Pages: 61-74

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] Payroll Tax Reform and Job Distribution2018

    • Author(s)
      Ryoichi Imai
    • Journal Title

      Research Bulletin. International Student Center, Kyushu University

      Volume: 26 Pages: 61-76

    • NAID

      40021542094

    • Related Report
      2017 Research-status Report
  • [Journal Article] 保険と医療需要2017

    • Author(s)
      今井 亮一
    • Journal Title

      九州大学留学生センター紀要

      Volume: 25 Pages: 117-130

    • NAID

      40021137525

    • Related Report
      2016 Research-status Report
    • Open Access
  • [Journal Article] 住宅市場のサーチ理論2016

    • Author(s)
      今井 亮一
    • Journal Title

      土地総合研究

      Volume: 24-1 Pages: 14-24

    • Related Report
      2015 Research-status Report
  • [Journal Article] アベノミクスを考える2016

    • Author(s)
      今井 亮一
    • Journal Title

      九州大学留学生センター紀要

      Volume: 24 Pages: 29-48

    • NAID

      40020751331

    • Related Report
      2015 Research-status Report
  • [Presentation] Tax Wedge and Job Distribution with Directed Search2018

    • Author(s)
      Ryoichi Imai
    • Organizer
      Search and Matching Theory Workshop, Fukuoka Japan
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] リサーチマップ(研究者番号保有者にのみ公開。ログインしてください)

    • URL

      https://researchmap.jp/kabukimono/

    • Related Report
      2018 Annual Research Report
  • [Remarks] Search Theory Workshop

    • URL

      http://japanese-economy.la.coocan.jp/STW.htm

    • Related Report
      2018 Annual Research Report 2017 Research-status Report 2016 Research-status Report 2015 Research-status Report
  • [Funded Workshop] Search and Matching Theory Workshop2018

    • Related Report
      2017 Research-status Report

URL: 

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

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