Last update: June 6, 2026
Takaaki Abe
Associate Professor, Department of Economic Engineering, School of Economics, Kyushu University
Ph.D. in Economics
Research Interests
Game theory, Theoretical economics
Working Papers
Self-Duality and Transfer in Voting Games
Measuring Concentration of Power in Approval Voting Games
Axiomatizations of Normalized Measures for Directed Networks (with Emiko Fukuda, Shigeo Muto)
Cores for Coalition Formation Games with Externalities (with Emiko Fukuda)
Deterring Over-declaration of Essential Patents through Random Assessments, Declaration Fees, and Royalty Sharing (with Emiko Fukuda, Shigeo Muto)
Publications
Patent Pool Formation between Rival Standards (with Emiko Fukuda, Shigeo Muto), International Journal of Game Theory 55: 15, 2026 [doi:10.1007/s00182-026-00985-3]
From Neighbors to Components: The Equivalence of Fairness for Neighbors and Gap Preservation, Mathematical Social Sciences 140: 102510 [doi:10.1016/j.mathsocsci.2026.102510]
The Permission-Owen Value: Axiomatization and Application to Liability Situations (with David Lowing, Satoshi Nakada, Kevin Techer), International Journal of Game Theory 54: 25, 2025 [doi:10.1007/s00182-025-00946-2]
Fair Allocation in Hierarchies: A Compromise between Marginalism and Egalitarianism (with David Lowing, Satoshi Nakada), Journal of Mathematical Economics 119: 103128, 2025 [doi:10.1016/j.jmateco.2025.103128]
Core Thresholds of Symmetric Majority Voting Games, Games and Economic Behavior 152: 199-215, 2025 [doi:10.1016/j.geb.2025.04.009]
Second-price Auctions with Information Acquisition Costs (with Tsuyoshi Onda, Takehiko Yamato), Economic Theory Bulletin 13: 21-36, 2025 [doi:10.1007/s40505-024-00277-7]
Patent Package Structures and Sharing Rules for Royalty Revenue (with Emiko Fukuda, Shigeo Muto), Social Choice and Welfare 63: 277-297, 2024 [doi:10.1007/s00355-024-01532-3]
Equal Surplus Sharing Values for Games with Coalition Structures, Economics Letters 240: 111775, 2024 [doi:10.1016/j.econlet.2024.111775]
The In-group Egalitarian Owen Values (with Satoshi Nakada), Games and Economic Behavior 142: 1-16, 2023 [doi:10.1016/j.geb.2023.07.013]
Potentials and Solutions of Cooperative Games with a Fixed Player Set (with Satoshi Nakada), International Journal of Game Theory 52: 757-774, 2023 [doi:10.1007/s00182-023-00839-2]
Core Stability of the Shapley Value for Cooperative Games (with Satoshi Nakada), Social Choice and Welfare 60: 523-543, 2023 [doi:10.1007/s00355-022-01432-4]
Stable Coalition Structures and Power Indices for Majority Voting, Journal of Public Economic Theory 24: 1413-1432, 2022 [doi:10.1111/jpet.12574]
Stable Coalition Structures: Characterizations and Applications of Hart and Kurz's Four Stability Concepts, Communications in Economics and Mathematical Sciences 1: 38-66, 2022 [doi:10.50906/cems.1.0_38]
Buck-passing Dumping in a Garbage-dumping Game, Theory and Decision 93: 509-533, 2022 [doi:10.1007/s11238-021-09858-5]
Invitation Games: An Experimental Approach to Coalition Formation (with Taro Shinoda and Yukihiko Funaki), GAMES 12: 64, 2021 [doi:10.3390/g12030064]
The Unbinding Core for Coalitional Form Games (with Yukihiko Funaki), Mathematical Social Sciences 113: 39-42, 2021 [doi:10.1016/j.mathsocsci.2021.04.007]
The Projective Core of Symmetric Games with Externalities (with Yukihiko Funaki), International Journal of Game Theory 50: 167-183, 2021 [doi:10.1007/s00182-020-00745-x]
Stability and Values for Games with Coalition Structures, Economics Letters 200: 109750, 2021 [doi:10.1016/j.econlet.2021.109750]
Cartel Formation in Cournot Competition with Asymmetric Costs: A Partition Function Approach, GAMES 12: 14, 2021 [doi:10.3390/g12010014]
Population Monotonic Allocation Schemes for Games with Externalities, International Journal of Game Theory 49: 97-117, 2020 [doi:10.1007/s00182-019-00675-3]
Axiomatizations of Coalition Aggregation Functions, Mathematical Social Sciences 103: 69-75, 2020 [doi:10.1016/j.mathsocsci.2019.12.001]
Monotonic Core Allocation Paths for Assignment Games (with Shuige Liu), Social Choice and Welfare 53: 557-573, 2019 [doi:10.1007/s00355-019-01197-3]
Decomposing a Balanced Game: A Necessary and Sufficient Condition for the Nonemptiness of the Core, Economics Letters 176: 9-13, 2019 [doi:10.1016/j.econlet.2018.12.009]
The Weighted-egalitarian Shapley Values (with Satoshi Nakada), Social Choice and Welfare 52(2): 197-213, 2019 [doi:10.1007/s00355-018-1143-3]
Stable Coalition Structures in Symmetric Majority Games: A Coincidence between Myopia and Farsightedness, Theory and Decision 85: 353-374, 2018 [doi:10.1007/s11238-018-9655-y]
Consistency and the Core in Games with Externalities, International Journal of Game Theory 47(1): 133-154, 2018 [doi:10.1007/s00182-017-0581-y]
Monotonic Redistribution: Reconciling Performance-based Allocation and Weighted Division (with Satoshi Nakada), International Game Theory Review 19(4): 1750022, 2017 [doi:10.1142/S0219198917500220]
The Non-Emptiness of the Core of a Partition Function Form Game (with Yukihiko Funaki), International Journal of Game Theory 46(3): 715-736, 2017 [doi:10.1007/s00182-016-0554-6]
Research Grants
Grant-in-Aid for Early-Career Scientists, Principal Investigator (No.25K16603, April 2025-March 2029)
Grant-in-Aid for Scientific Research (C), Co-Investigator (No.24K04776, April 2024-March 2027)
Grant-in-Aid for Early-Career Scientists, Principal Investigator (No.22K13362, April 2022-March 2025)
Grant-in-Aid for Scientific Research (B), Co-Investigator (No.22H00829, April 2022-March 2027)
Grant-in-Aid for Research Activity Start-up, Principal Investigator (No.19K23206, April 2019-March 2021)
Grant-in-Aid for JSPS Research Fellow (DC1, No.16J00035, April 2016-March 2019)
Awards
Seiichi Tejima Research Awards 2023 (Fujino-Nakamura Young Researcher Award), Tokyo Institute of Technology
Azusa Ono Memorial Award 2017, Waseda University
Kanematsu Fellowship 2017 (with Satoshi Nakada), Kobe University
Iijima Prize 2016, Waseda Univesity
Azusa Ono Memorial Award 2015, Waseda University
Presentations
Core Stability of Approval Voting Games, Game Theory Seminar on Patent-pool Formation and Cooperative Games, Institute of Science Tokyo, November, 2025
Axiomatizations of Normalized Measures for Directed Networks, Graduate Student Seminar, National Chengchi University, Taiwan, September, 2025
Axiomatizations of Normalized Measures for Directed Networks, Summer Workshop on Game Theory and Experimental Economics 2025, Waseda University, Japan, August, 2025
Conditions for nonemptiness of the cores of coalition formation games, Waseda Game Theory and Experimental Economics Workshop, Waseda Univeristy, February, 2025
Farsighted stable sets for hedonic games with externalities, Game Theory Seminar on Patent-pool Formation and Hedonic Games, Institute of Science Tokyo, November, 2024
Deterring Over-declaration of Essential Patents through Random Assessments, Declaration Fees, and Royalty Sharing, The 17th Joint Conference by Kyushu University, Renmin University of China, and Nanjing University, Renmin University, Beijing, September, 2024
Deterring Over-declaration of Essential Patents through Random Assessments, Declaration Fees, and Royalty Sharing, SING19, University of Franche-Comté, France, July, 2024
Games with Hypergraphs and Sharing Rules for Royalty Revenue, Waseda Game Theory and Experimental Economics Workshop, Waseda Univeristy, January, 2024
Sharing rules, royalty revenue, and hypergraph function form games, Tokyo-Tech Winter Seminar on Game Theory 2024, Tokyo Institute of Technology, January, 2024
Second-price Auctions with Information Acquisition Costs, Komazawa Microeconomics Workshop, Komazawa University, December, 2023
Core Thresholds of Symmetric Majority Voting Games, Japanese Economic Association, Kansai University, Semptember, 2023
Patent Package Structures and Sharing Rules for Royalty Revenue, Summer Workshop on Game Theory and Experimental Economics 2023, Tokyo Institute of Technology, Semptember, 2023
Patent Pool Formation as a Social Dilemma, Summer Workshop on Game Theory and Experimental Economics 2022, Keio University, Japan, September, 2022
Incompatibility between Stability and Boundedness of Power in Multi-group Voting Games, SWET2022, Otaru, Japan, August, 2022
Incompatibility between Stability and Boundedness of Power in Multi-group Voting Games, Komazawa Microeconomics Workshop, Komazawa University, August, 2022
Trade-off between Equality and Stability in Multi-group Voting Games, SING17, University of Padova (online), Italy, July, 2022
Trade-off between Equality and Stability in Multi-group Voting Games, Kansai Game Theory Workshop, Osaka University of Economics, Japan, June, 2022
Trade-off between Equality and Stability in Multi-group Voting Games, Japanese Economic Association, Yokohama National University (online), Japan, May, 2022
Stable Coalition Structures and Power Indices for Majority Voting, East Asian Game Theory Conference 2021, online, China, April, 2021
Stable Coalition Structures and Power Indices for Majority Voting, Japan Association of Political Economy, online, Japan, March, 2021
Stable Coalition Structures and Power Indices for Majority Voting, Summer Workshop on Game Theory and Experimental Economics 2020 (Co-organized by CEFM project), online, September, 2020
Buck-passing Dumping in a Pure Exchange Game of Bads, Keio Microeconomics Workshop, Keio University (online), Japan, July, 2020
Buck-passing Dumping in a Pure Exchange Game of Bads, Japanese Economic Association, Kyushu University (online), Japan, May, 2020
Stable Dumping Strategies in a Pure Exchange Game of Bads, CREST Workshop in Experimental Economics, Ecole polytechnique, France, November, 2019
Axiomatizations of Coalition Aggregation Functions, Japanese Economic Association, Kobe University, Japan, October, 2019
Axiomatizations of Coalition Aggregation Functions, Summer Workshop on Game Theory 2019, Sendai, Japan, August, 2019
Axiomatizations of Coalition Aggregation Functions, WINPEC Microeconomics Workshop, Tokyo, Japan, 2019
Stable Coalition Structures: Characterizations and Applications of Hart and Kurz's Four Stability Concepts, EAGT2019, Fuzhou University, China, March, 2019
Monotonic Core Allocation Paths for Assignment Games, Summer Workshop on Game Theory 2018, Fukuoka, Japan, August, 2018
Population Monotonic Allocation Schemes for Games with Externalities, SAET2018, Academia Sinica, Taiwan, June, 2018
Population Monotonic Allocation Schemes for Games with Externalities, Japanese Economic Association, University of Hyogo, Japan, June, 2018
Stable Coalition Structures in Symmetric Majority Games, Workshop on Microeconomics and Game Theory, Kyoto University, Japan, September, 2017
Stable Coalition Structures in Symmetric Majority Games, Summer Workshop on Game Theory 2017, Hokkaido, Japan, August, 2017
The Unbinding Core for Coalitional Form Games, EAGT2017, National University of Singapore, Singapore, July, 2017
The Unbinding Core for Coalitional Form Games, SING13, Paris Dauphine University, France, July, 2017
Hedonic Games with Externalities, Japanese Economic Association, Ritsumeikan University, Japan, June, 2017
Hedonic Games with Externalities, MARS2017, Jean-Monnet University, France, March, 2017 (Invited)
Efficiency and the Core in Games with Positive and Negative Externalities, Japanese Economic Association, Waseda University, Japan, September, 2016
Efficiency and the Core in Games with Positive and Negative Externalities, Summer Workshop on Game Theory 2016, Seoul National University, Korea, August, 2016
Efficiency and the Core in Games with Positive and Negative Externalities, SING12, Unversity of Southern Denmark, Denmark, July, 2016
Partition Function Form Games with Subjective Expectation Formation Rules, Summer Workshop on Game Theory 2015, Shizuoka, Japan, August, 2015
A Necessary and Sufficient Condition for Non-emptiness of the Core of a Partition Function Form Game, EAGT2015, Tokyo, Japan, August, 2015
Axiomatic Characterizations of Expectation Functions for Coalition Formation, Japan Association of Political Economy, Waseda University, Japan, March, 2015
A Necessary and Sufficient Condition for Non-emptiness of the Core of a Partition Function Form Game, TCER Workshop, Waseda University, Japan, March, 2015
Characterization of the Core in Partition Function Form by Bondareva-Shapley Condition, Summer Workshop on Game Theory 2014, Nagano, Japan, August, 2014
Lectures
Economic Theory I (Graduate, English), Kyushu University
Economic Theory II (Graduate, English), Kyushu University
Experimental Economics, Kyushu University
Set and Topology, Kyushu University
Public Economics, Kyushu University
Applied Microeconomics, Kyushu University
Microeconomics, Kyushu University
Game Theory and Experiment, Gakusyuin University [2022-2023]
Game Theory (Graduate, English), Waseda University [Summer 2023-2024]
Experimental Economics, Tokyo Tech [Fall 2021]
Microeconomics, Tokyo Tech [Fall 2021]
Game Theory, Komazawa University [2021-2022]
Mathematics for Economics (Graduate, English), Waseda University [Spring 2021]
Miscellaneous Contributions
オペレーションズ・リサーチ特集 (vol.70 no3, 2025) "ゲーム理論で読み解くごみ廃棄問題" JP
Kyushu University News, Features (Interview), "ゲーム理論で新たな総合知の創出を" EN JP
九州大学人社系コモンズ 知の形成史８ "ゲーム理論のレンズで見れば" JP
Workshop Collection in Fukuoka 2024, 小学生向け特別講義 "そうじの時間はサボっちゃう!? 身の回りのゲーム理論" JP
Peer Review Activities
Applied Sciences
Dynamic Games and Applications
Fuzzy Sets and Systems
Games
Games and Economic Behavior
International Game Theory Review
International Journal of Game Theory
International Journal of Economic Theory
Journal of Economic Theory
Journal of Mathematical Economics
Journal of Public Economic Theory
Mathematical Methods of Operations Research
Mathematical Social Sciences
Mathematics
Operations Research Letters
Social Choice and Welfare
The Manchester School