- 2021 - 2025 Exploring Political Culture of Mexican Immigrants in the U.S.: A Mixed Method Approach
- 2020 - 2025 Development from electoral research to the study of representative democracy through the JESVII survey and data release publicly
- 2021 - 2024 政府による情報技術利用に対する有権者の受容と信頼
- 2019 - 2023 選挙ガバナンスが正確な投票(CorrectVoting)に与える影響に関する研究
- 2018 - 2023 An International Comparative Study of Governance in Representative Democracy
- 2019 - 2022 Empirical Analysis of Buying Votes Across Borders
- 2018 - 2021 The Alliance Dilemma in the American and Japanese Public Minds
- 2017 - 2021 Electoral district as Political space: What the zoning provides?
- 2017 - 2020 Developing an Archive Infrastructure for Political Data
- 2015 - 2020 投票外参加の日米比較:確率標本によるインターネット調査を用いた因果推論の精緻化
- 2015 - 2019 Research on Development and Effects of Substantive Voting Rights
- 2014 - 2019 Time Series Analysis of Cabinet Approval Ratings and Their Interaction with Political Events, News Reports, and Public Opinion
- 2013 - 2018 Institution Building and Policymaking that Reflect Needs of Citizens: An Approach of Political Economy
- 2011 - 2016 American "Electoral Democracy" in Crisis: Social-Economic Changes and Political Respnoses
- 2012 - 2016 Japanese Electoral Studies 2012-2016
- 2012 - 2015 Political Parties and Voters' Attitudes toward Risks
- 2011 - 2014 A Study of Japanese Preference Formation in Foreign Policy
- 2009 - 2011 Voters'"Disappointment,""Anxiety," and "Hope" and the Possibility of Change in Government Leadership
- 2006 - 2008 Political Change and Decision Making Mechanism of the Japanese : Integration of Psychological Economic Experiment and Public Opinion Survey
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