Research theme for competitive and other funds (21)：
2024 - 2028 現代財政法の体系的再構築に向けた比較法的研究
2023 - 2027 多様化する保険-社会的相互扶助の仕組みとしての可能性を探る
2023 - 2027 The Roles of Businesses and Laws in the Age of "Sustainable Society"
2019 - 2024 Multi-layered Structure of Global, National and Local Laws and their Coordination
2020 - 2023 法的判断における「良い議論」とは何か-法学と議論学の協働による接近
2016 - 2020 The possibility of the nuclear law system as sustainable public goods
2016 - 2020 Legal Theory of Transnational Law: Legal Pluralism and Governance
2016 - 2020 Enforcement and Dispute Resolution in the Globalized Policy Cycle
2016 - 2019 Reflections on Conflict-of-Laws Issues with Regard to International Aspects of Succession Substitutes
2015 - 2018 Problems and possibilities of interdisciplinary legal study and legal education in an age of globalization
2013 - 2016 Complex Risk Governance - risk mapping, sector based comparative case studies, institutional options
2013 - 2016 International Conflict of Tax Law Norms and the Coordination among them
2010 - 2015 Multidisciplinary Study on Japanese Practice for implementation of Environmental Treaties: Linkage between International Law and National Law and Policy for Environmental Protection.
2012 - 2015 Redefining the Theoretical Grounds for the Collaboration between Public Law and Private Law in the Era of Globalization
2009 - 2013 Governance Reform and Policy Process Management for Sustainability
2009 - 2011 The Current Trends of the Financial System and Legal Protections of Consumers and End-investors
2009 - 2011 Establishing the Long-term Fiscal Discipline through the Flexibly-Structured Legal Institution of Public Finance
2007 - 2008 A Legal Study on "Funds" in the Public Finance System
2006 - 2008 Legal Aspects of Combined Transactions : with Emphasis on FinancialTransactions
2005 - 2007 Non-profit Organizations, Local Governments, and Subsidiarity Principles With Regard to Housing Welfare Law
2005 - 2006 契約の経済理論の財政法学への導入による財政民主主義原則の再構成
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Papers (80)：
Issues on the VAT-registered person's acqusitions and input tax credit in the Japanese VAT system. Jurist. 2023. 1588. 20-25
IFA Regions Panel (Asia Pacific) Japan's perspective
(The Global Tax Agreement: the Two-Pillar Solution 2021)
Données et chiffres des finances publiques : A Comparative Observation from Japan
(Colloque de la première Université d’été de la Société Française de Finances Publiques (SFFP) « Données et chiffres des finances publiques » (Poitiers, France) 2018)
How Japan is (not) dealing with the public finance crisis
(La Nouvelle-Calédonie face à la crise des finances publiques (Nouméa, New Caledonia) 2017)
The Law, Governance, and Society in the Context of Globalization
(PPG Research Project International Workshop: “A Re-formulation of Public and Private Laws under the Globalization” 2016)
