18. Watchdog versus Yes Man: News Source and Media Competition. 

     Games and Economic Behavior, 153, pp. 233-253. 2025. (Joint with Susumu Sato) 

• Keywords: Media competition, News source, Bias, Differentiation, Watchdog journalism

17. Responsive Parties and Political Winner’s Curse.  

     Economics Letters, 254, 112443. 2025. (Joint with R. Emre Aytimur)

• Keywords: Policy divergence; Electoral competition; Responsive party; Polarization

• Working paper

16. Inequality, Conspiracy Theories, and Redistribution. 

     European Journal of Political Economy, 89, 102698. 2025.

• Keywords: Redistribution; Inequality; Conspiracy theory, Belief-based utility; Self-image

15. Does Informative Opposition Influence Electoral Accountability? 

Quarterly Journal of Political Science, 19(4), pp. 459-498. 2024. (Joint with Satoshi Kasamatsu) 

• Keywords: Monitoring; Cheap-talk; Political agency; Minority party; Legislature

• The published version is also available here.

• Working paper

14. Self-Benefits, Fiscal Risk, and Political Support for the Public Healthcare System.  

     European Journal of Political Economy,  85, 102597. 2024. (Joint with Tomoko Matsumoto) 

• • Keywords: Healthcare system, Policy preference, Benefit, Fiscal risk, Survey experiment
  • Press release by Tokyo University of Science

13. Endogenous Political Trust and Electoral Accountability 

The Journal of Politics, 86(1), pp. 358-363. 2024. (Joint with Satoshi Kasamatsu) 

• Keywords: Political trust; Model uncertainty; Multiple equilibria; Political agency

• Working paper: Final version; Old version

• Non-technical summary: JOP Blog

12. Ambiguity and Self-Protection: Evidence from Social Distancing under the COVID-19 Pandemic. 

     Japanese Economic Review, 75, pp. 269–300. 2024. (Joint with Hans H. Tung and Charlotte Wang) 

• Keywords: Scientific uncertainty; Ambiguity; Self-protection; Preventive behaviors; COVID-19

• Free access (view only)

• Working paper version

11. Overconfidence, Income-Ability Gap, and Preferences for Income Equality. 

European Journal of Political Economy, 77, 102279. 2023. (Joint with Tomoko Matsumoto and Atsushi Yamagishi) 

• Keywords: Preferences for redistribution; Overconfidence; Political ideology; Meritocracy; Fairness

• Working paper version

• Press release by Tokyo University of Science (Japanese version is available here). Media coverage: Nikkan Kogyo Shinbun (in Japanese); PsyPost

10. Do Supermajority Rules Really Deter Extremism? The Role of Electoral Competition. 

 Journal of Theoretical Politics, 34(1), pp. 127–144. 2022. (Joint with Atsushi Yamagishi)

• Keywords: Divergence; Probabilistic voting; Supermajority; Legislative bargaining

•  Old version presenting a different model 

9.  Informative Campaigning in Multidimensional Politics: The Role of Naive Voters. 

 Journal of Theoretical Politics, 34(1), pp. 78–106. 2022. (Joint with Satoshi Kasamatsu) 

• Keywords: Political campaigning; Negative campaigning; Issue selection; Bayesian irrationality; Mass media

• Working paper version

8. Tax Competition and Political Agency Problems. 

Canadian Journal of Economics, 54(4), pp.1782-1810. 2021. (Joint with Satoshi Kasamatsu)

• Keywords: Asymmetric tax competition; Reputation; Populism; Signaling; Leviathan
• Previous title: When Populism Meets Globalization: Analysis of Tax Competition
• Working paper version (The old version containing additional results is available at SSRN). 

7. Optimal Risk Regulation of Monopolists with Subjective Risk Assessment.

Journal of Regulatory Economics, 59(3), pp. 251–279. 2021. (Joint with Susumu Sato)

• Keywords: Monopoly regulation ; Environmental risk;  Ambiguity; Risk assessment; Moral hazard
• Working paper version

6.  Contagion of Populist Extremism. 

Journal of Public Economics, 193, 104324. 2021. (Joint with Atsushi Yamagishi) 

• Keywords: Political agency; Yardstick competition; Populism; Observational learning; Signaling
• This study received the 22th Moriguchi Prize.
• Working paper version
• Media coverage: Toyo Keizai (in Japanese).

5. (Not) Delegating Decisions to Experts: The Effect of Uncertainty. 

Journal of Economic Theory, 190, 105117. 2020.

• Keywords: Dynamic delegation; Experts; Agency problems; Ambiguity; Populism
• Previous title: Emergence of Populism under Risk and Ambiguity
• This study received ITAX PhD Award. You can find a brief summary of the article in International Tax and Public Finance. [link]

4. Public Goods Game with Ambiguous Threshold. 

Economics Letters, 191, 109165. 2020. (Joint with Hiroyuki Ozaki)

• Key words: Collective action; Public goods; Ambiguity; Choquet expected utility
• Working paper version

3. Does High Labour Mobility Always Promote Trade Liberalization? 

Canadian Journal of Economics, 52(3), pp. 1223-1247. 2019. 

• Keywords: Trade liberalization; Labor mobility; Representative democracy; Political agency
• Working paper version

2. An Informational Role of Supermajority Rules in Monitoring the Majority Party's Activities.  

Journal of Public Economic Theory, 21(1), pp. 167–196. 2019.  

• Keywords: Legislative bargaining; Media capture; Multiple monitors; Political agency; Supermajority
• Working paper version 

1. When Trade Liberalization is Self-Fulfilling: Population Aging and Uncertainty. 

Economics & Politics, 30(2), pp.274-306. 2018. 

• Keywords: Political economy of trade policy; Skill acquisition; Population aging; Strategic delay; Leadership
• Recognized as top 20 most read paper during 2017-2018.