Name

ISHIKAWA, Ryuichiro

Official Title

Associate Professor Associate Professor

Affiliation

(School of International Liberal Studies)

Contact Information

Mail Address

Mail Address
r.ishikawa@waseda.jp

URL

Web Page URL

http://www.f.waseda.jp/r.ishikawa/index.html

Grant-in-aids for Scientific Researcher Number
80345454

Sub-affiliation

Sub-affiliation

Faculty of International Research and Education(Graduate School of International Culture and Communication Studies)

Faculty of Political Science and Economics(Graduate School of Economics)

Faculty of Commerce(Graduate School of Commerce)

Faculty of Social Sciences(Graduate School of Social Sciences)

Educational background・Degree

Educational background

1993/04 -1997/03 Tokyo University of Science School of Management
1997/04 -2002/03 Hitotsubashi University Graduate School of Economics

Degree

Ph. D. in Economics Hitotsubashi University Economic theory

Career

2002/04-2003/03Hitotsubashi UniversityFaculty of EconomicsResearch Associate
2003/04-2005/03Japan Society for the Promotional SciencePostdoctoral Fellow
2003/08-2005/01University of California, BerkeleyDepartment of EconomicsPostdoctoral Fellow
2005/04-2011/09University of TsukubaGraduate School of Systems and Information EngineeringAssistant Professor
2011/10-2013/03University of TsukubaFaculty of Engineering, Information, and SystemsAssistant Professor
2013/04-2016/03University of TsukubaFaculty of Engineering, Information, and SystemsAssociate Professor
2014/04-2015/03University of California, DavisDepartment of EconomicsVisiting Scholar
2016/04-Waseda UniversitySchool of International Liberal StudiesAssociate Professor

Award

Best Paper Award

2011/08Conferment Institution:12th International Conference on Global Business and Economic Development (SGBED)

Award for outstanding educational contribution

2010/04Conferment Institution:Graduate School of Systems and Information Engineering, University of Tsukuba

Interview Guide

Category
Social sciences
Research Field
Game Theory, Financial Economics, Behavioral & Experimental Economics

Research Field

Keywords

Economic Theory,Game Theory,Experimental Economics,Financial Economics

Grants-in-Aid for Scientific Research classification

Social sciences / Economics / Economic theory

Paper

Behavioral uncertainty and the dynamics of traders' confidence in their price forecasts

Hanaki, N., E. Akiyama, and R. Ishikawa

Journal of Economic Dynamics & Control Peer Review Yes 88p.121 - 1362018/03-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Effects of different ways of incentivizing price forecasts on market dynamics and individual decisions in asset market experiments

Hanaki, N., E. Akiyama, and R. Ishikawa

Journal of Economic Dynamics & Control Peer Review Yes 88p.51 - 692018/03-

DOI

Detail

Publish Classification:Research paper (scientific journal)

It is not just confusion! Strategic uncertainty in an experimental asset market

E. Akiyama, N. Hanaki, R. Ishikawa

Economic Journal Peer Review Yes 127(October) p.F563 - F5802017/10-2017/10

DOI

Detail

Publish Classification:Research paper (scientific journal)

Inductive Game Theory and Logical Positivism

Ryuichiro Ishikawa

Waseda Global Forum 14p.41 - 602018/03-

Detail

ISSN:1349-7766

Outline:Inductive game theory is a branch of game theory. This theory captures how individual experiences are reflected into their decisions. From the viewpoint, the theory answers why individuals have different/various views for an identical situation, and establishes the foundation of incomplete information games with a prior. In this sense, it is related to logical positivism in the 20th century. This is because the logical positivism was a branch of empiricism and the methodology is affected by modern logic since F. L. G. Frege, B. A. W. Russell and A. N. Whitehead. Since a branch of game theory also employs mathematical logic (called Game Logic), the philosophy of the logical positivism will offer new insights to the methodology and the research targets on game theory. In this paper, I raise the methodology that inductive game theory should seek from the viewpoint of logical positivism. Furthermore, I show that the inductive game theory needs the relationship to social institutions. My first suggestion is how the theory can capture others minds in a player’s own mind. This is because inductive game theory does not involve universal belief/type space of the standard incomplete information games. I put forward a proposal to introduce others’ mind. As generally known, the logical positivism was finally criticized by W. V. O. Quine and others, and is regarded as failure. Then, I will reach the second suggestion; how the failure is related to inductive game theory. In the suggestion, I state that the failure is not the problem in inductive game theory, but it emphasizes the importance to develop “Economics of institutions and recognition”. We conclude that the failure is overcome by considering interactions between individuals and societies in inductive game theory.

Heterogeneous Information in Experimental Asset Markets

H. Tsuruzono, Y. Fujii, T. Goto, and Y. Hattori, R. Ishikawa

Osaka Sangyo University Journal of Economics Peer Review Yes 16(1-2) p.23 - 352015-

Detail

Publish Classification:Research paper (scientific journal)

How do experienced traders respond to inflows of inexperienced traders? An experimental analysis

E. Akiyama, N. Hanaki, R. Ishikawa

Journal of Economic Dynamics & Control Peer Review Yes 45p.1 - 182014-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Revision of beliefs with perceived experiences

Y. Fujii, R. Ishikawa

Annual Research Bulletin of Osaka Sangyo University Peer Review Yes 5(March) p.45 - 702013-

Detail

Publish Classification:Research paper (scientific journal)

How does childbirth alter intrahousehold resource allocation?: Evidence from Japan

T. Fujii, R. Ishikawa

Peer Review Yes 75(3) p.362 - 3872013-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Inductive game theory: A simulation study of learning a social situation

E. Akiyama, R. Ishikawa, M. Kaneko and J. J. Kline

Game Theory Relaunched Peer Review Yes Chapter 3p.55 - 762013-

DOI

Detail

Publish Classification:Research paper (scientific journal)

A note on separability and intra-household resource allocation in a collective household model

T. Fujii, R. Ishikawa

Review of Economics of the Household Peer Review Yes 11(1) p.143 - 1492013-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Interbank market contagion by mark-to-market accounting

T. Ishikawa, R. Ishikawa

n 24th Asian-Pacific Conference on International Accounting Issues Peer Review Yes 2013-

Detail

Publish Classification:Research paper (international conference proceedings)

Quasi-option value under strategic interactions

T. Fujii, R. Ishikawa

Resource and Energy Economics Peer Review Yes 36p.36 - 542012-

DOI

Detail

Publish Classification:Research paper (scientific journal)

A Simulation Study of Learning a Structure Mike's Bike Commuting

M. Kaneko, J. J. Kline, E. Akiyama, R. Ishikawa

Proceedings of 2nd International Conference on Simulation and Modeling Methodologies, Technologies Peer Review Yes p.208 - 2172012-

Detail

Publish Classification:Research paper (international conference proceedings)

Belief revision for inductive game theory

K. Hasebe, R. Ishikawa

9th European workshop on Multi-Agent Systems Peer Review Yes 2011-

Detail

Publish Classification:Research paper (international conference proceedings)

Difference between AFHH and DP option values under strategic interactions

T. Fujii, R. Ishikawa

12th International Conference on Global Business and Economic Development Peer Review Yes 2011-

Detail

Publish Classification:Research paper (international conference proceedings)

Learning games

N. Hanaki, R. Ishikawa, E. Akiyama

Journal of Economic Dynamics & Control Peer Review Yes 33(10) p.1739 - 17562009-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Rational expectations can preclude trades

T. Matsuhisa, R. Ishikawa

Advances in Mathematical Economics Peer Review Yes 11p.105 - 1162008-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Communication protocols with belief messages

R. Ishikawa

Theory and Decision Peer Review Yes 61(1) p.63 - 642006-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Core Equivalence in Economy under Generalized Information

T. Matsuhisa, R. Ishikawa, Y. Hoshino

Proceedings of the Third International Conference on Nonlinear Analysis and Convex Analysis Peer Review Yes p.277 - 2882004-

Detail

Publish Classification:Research paper (international conference proceedings)

Rationality of final decisions leads to sequential equilibrium

R. Ishikawa, T. Matsuhisa

ICM Millennium Lectures on Games Peer Review Yes p.193 - 2042003-

DOI

Detail

Publish Classification:Research paper (international conference proceedings)

Consensus on p-belief communication

R. Ishikawa, T. Matsuhisa, Y. Akagawa

International Journal of Applied Mathematics Peer Review Yes 8(2) p.159 - 1702002-

Detail

Publish Classification:Research paper (scientific journal)

Rationality on final decisions leads to sequential equilibrium

R. Ishikawa, T. Matsuhisa

Internatinal Congress of Mathematicians, Game theory and Applications Satellite conference Peer Review Yes Proceedings volumep.251 - 2622002-

Detail

Publish Classification:Research paper (international conference proceedings)

Arrow-Fisher-Hanemann-Henry and Dixit-Pindyck option values under strategic interactions

T. Fujii, R. Ishikawa

Strategic Behavior and the Environment Peer Review Yes 3(3) p.169 - 1832013-

DOI

Detail

Publish Classification:Research paper (scientific journal)

Research Grants & Projects

Grant-in-aids for Scientific Research Adoption Situation

Research Classification:

Theoretical and Experimental studies on Financial contagion due to Accounting system

2014/-0-2016/-0

Allocation Class:¥3510000

Research Classification:

Inductive learning theory and its application to experimental asset markets

2014/-0-2018/-0

Allocation Class:¥15210000

Research Classification:

Voting Outcomes in Public Facility Location Problems

2013/-0-2015/-0

Allocation Class:¥3640000

Research Classification:

Role of higher order beliefs in decision making: Inductive approach

2011/-0-2014/-0

Allocation Class:¥3770000

Research Classification:

Theoretical Analysis of an Economic System with Information andTransaction Networks in Market Economies

2010/-0-2013/-0

Allocation Class:¥4160000

Research Classification:

Market trade under uncertainty and inductive game theory : Role of Experience and cognition

Allocation Class:¥3510000

Research Classification:

game theory

2009/-0-2014/-0

Allocation Class:¥39650000

Research Classification:

A study on disability in a socio-economic context: toward a unified social science

Allocation Class:¥538980000

Research Classification:

Formation of social structure and communication : Application to economics

Allocation Class:¥2600000

Research Classification:

Inductive Game Theory and Limited Rationalities : Individual Derivations of Social Views and Behavioral Decision

Allocation Class:¥10460000

On-campus Research System

Special Research Project

金融市場における投資家の期待形成と金融危機抑制のための銀行規制に関する研究

2016

Research Results Outline:    本研究では、資産取引実験を通じて実際の取引データを収集・分析した。特に注目した実験設定は以下である。1: 過去の実験設定よ    本研究では、資産取引実験を通じて実際の取引データを収集・分析した。特に注目した実験設定は以下である。1: 過去の実験設定より取引期間(回数)を大幅に増やしたとき、これまでの実験で観察された性質が観察できるか。すなわち、そ...    本研究では、資産取引実験を通じて実際の取引データを収集・分析した。特に注目した実験設定は以下である。1: 過去の実験設定より取引期間(回数)を大幅に増やしたとき、これまでの実験で観察された性質が観察できるか。すなわち、その性質は頑健か2: 中央銀行の量的緩和政策が資産価格バブルの抑制に有効か    1 については、これまでの性質の頑健さが示された一方、フラット・バブルというこれまでとは異なる現象が観察された。2については、中央銀行が国債市場で国債を買い取る量的緩和政策が高い価格を維持することになり、中央銀行による国債販売は資産価格を抑制することが観察され、量的緩和政策の一定の有効性を確認することができた。

帰納的学習理論に基づく意思決定理論の構築と経済実験への応用

2017

Research Results Outline: 本研究では、経験に基づく新しいゲーム理論である「帰納的ゲーム理論」の理論と実験および哲学的側面について研究を行なった。 理論研究では信念改訂理論を応 本研究では、経験に基づく新しいゲーム理論である「帰納的ゲーム理論」の理論と実験および哲学的側面について研究を行なった。 理論研究では信念改訂理論を応用し、主体が情報の授受によって直面しているゲームの認識を改訂していく過程を描写する。この研究は次年... 本研究では、経験に基づく新しいゲーム理論である「帰納的ゲーム理論」の理論と実験および哲学的側面について研究を行なった。 理論研究では信念改訂理論を応用し、主体が情報の授受によって直面しているゲームの認識を改訂していく過程を描写する。この研究は次年度以降も続けられる。実験では資産市場実験に応用し、主体の合理性を考察した。特に将来の市場価格の予想の確信レベルと取引行動の関係を考察した。 経験に基づく世界観の形成は、20世紀には論理実証主義を掲げるウィーン学団が考察を行なっている。そのため、本研究との関係を哲学的な側面から考察し、「論理実証主義からみる帰納的ゲーム理論」としてまとめた。

集合知メカニズムにおける情報設計の理論・実験・シミュレーション

2018

Research Results Outline: 本研究では、限定合理的主体が限られた経験の中で、社会をどのように認識するかを考察する。また、そのような主体の認識を補完し、円滑なコミュニケーションや 本研究では、限定合理的主体が限られた経験の中で、社会をどのように認識するかを考察する。また、そのような主体の認識を補完し、円滑なコミュニケーションや経済活動を促す役割を社会制度が果たすという観点から、適切な制度設計について分析する。 これを進める... 本研究では、限定合理的主体が限られた経験の中で、社会をどのように認識するかを考察する。また、そのような主体の認識を補完し、円滑なコミュニケーションや経済活動を促す役割を社会制度が果たすという観点から、適切な制度設計について分析する。 これを進めるために、限定合理的主体が経験を考慮し、自らの意思決定の基準を形成する理論の構築を「事例ベース意思決定理論」に基づいて行った。また、熟議の民主主義などで考察されるコミュニケーションの場を分析するための理論を動的認識論理とメカニズムデザイン理論を用いることで発展させた。

Lecture Course

Course TitleSchoolYearTerm
Behavioral & Experimental Game Theory 01School of International Liberal Studies2019spring semester
Monetary & Financial Economics 01School of International Liberal Studies2019spring semester
Seminar on Economy and Business 03School of International Liberal Studies2019spring semester
Seminar on Economy and Business 53School of International Liberal Studies2019fall semester
Intermediate Seminar 11School of International Liberal Studies2019spring semester
Intermediate Seminar 58School of International Liberal Studies2019fall semester
First Year Seminar A 25School of International Liberal Studies2019spring semester
Intermediate Calculus 51School of International Liberal Studies2019fall semester
Introduction to Logic & set theory 51School of International Liberal Studies2019fall semester
Research guidance on (seminar) Theoretical Economics B(Ishikawa, Ryuichiro)Graduate School of Economics2019fall semester
Microeconomics II(Ishikawa, R)Graduate School of Economics2019winter quarter
Microeconomics IIGraduate School of Commerce2019winter quarter
Microeconomics II(Ishikawa, R)Graduate School of Social Sciences2019winter quarter
Social Studies and CommunicationGraduate School of International Culture and Communication Studies2019fall semester