Selected Working Papers

1. Katsumata, Hiroto and Shunya Noda. "'Kick Them Out' as a Voting Strategy: Theory and Evidence from Multi-member District Elections." Conditionally accepted at Journal of Politics.

2. "How Should We Estimate Inverse Probability Weights with Possibly Misspecified Propensity Score Models?" Conditionally accepted at Political Science Research and Methods.

3. "Statistical Analysis with Machine Learning Predicted Variables" (with Soichiro Yamauchi)

Publications

Peer-Reviewed Articles (in English)

1. Horiuchi, Yusaku, Hiroto Katsumata, and Ethan Woodard. 2023. "Young Citizens' Civic Engagement and Civic Attitudes: A Regression Discontinuity Analysis." Political Behavior 45: 265--284  [SSRN]

2. Shoji, Masahiro, Susumu Cato, Takashi Iida, Kenji Ishida, Asei Ito, Hiroto Katsumata, and Kenneth Mori McElwain. 2022. "Mobile Health Technology as a Solution to Self-Control Problems: The Behavioral Impact of COVID-19 Contact Tracing Apps in Japan." Social Science and Medicine 306: 115142.

3. Cato, Susumu, Takashi Iida, Kenji Ishida, Asei Ito, Hiroto Katsumata, Kenneth Mori McElwain, and Masahiro Shoji. 2022. "Vaccination and Altruism under the COVID-19 Pandemic." Public Health in Practice 3: 100225.

4. Cato, Susumu, Takashi Iida, Kenji Ishida, Asei Ito, Hiroto Katsumata, Kenneth Mori McElwain, and Masahiro Shoji. 2021. "Social Media Infodemics and Social Distancing under the COVID-19 Pandemic: Public Good Provisions under Uncertainty." Global Health Action 14(1): 1995958.

5. Shoji, Masahiro, Asei Ito, Susumu Cato, Takashi Iida, Kenji Ishida, Hiroto Katsumata, and Kenneth Mori McElwain. 2021. "Prosociality and the Uptake of COVID-19 Contact Tracing Apps: Survey Analysis of Intergenerational Differences in Japan." JMIR Mhealth Uhealth 9(8).

6. Cato, Susumu, Takashi Iida, Kenji Ishida, Asei Ito, Hiroto Katsumata, Kenneth Mori McElwain, Masahiro Shoji. 2021. "The Bright and Dark Sides of Social Media Usage during the COVID-19 Pandemic: Survey Evidence from Japan." International Journal of Disaster Risk Reduction 54.

Peer-Reviewed Articles (in Japanese)

1. Hiroto Katsumata. 2021. "Nomination Strategies under the Single Non-transferable Vote System." Japanese Journal of Electoral Studies 37(1): 72--85. [勝又裕斗．「中選挙区制における候補者擁立戦略」 ．『選挙研究』]

2. Hiroto Katsumata. 2020. "Party Competition under the Single Non-transferable Vote System." The Annuals of Japanese Political Science Association 2020 (1): 368--92. [勝又裕斗．「中選挙区制と政党間競争」 ．『年報政治学』]

3. Hiroto Katsumata. 2020. "Quantifying the Discrepancy between Real-world Data and Theoretical Predictions in a Theory of Strategic Voting." Japanese Journal of Electoral Studies 36 (1): 91--103. [勝又裕斗．「中選挙区制における得票均衡の検証のための新指標」 ．『選挙研究』[2020年度日本選挙学会優秀論文賞]]

4. Hiroto Katsumata. 2016. "Analysis of Candidate-level Proximity Voting with Comparable Positions of Voters, Politicians, and Parties." The Annuals of Japanese Political Science Association 2016 (1): 208--32. [勝又裕斗．「有権者―候補者間の近接性と投票選択：有権者・政治家・政党の比較可能な位置推定による空間投票の分析」．『年報政治学』]

Other Publications (in Japanese)

1. 勝又裕斗．2023．「国立七大学教養教育授業評価アンケート実施状況調査結果」．『教育研究データ分析室紀要』第5号：7--25．

2. 勝又裕斗．2022．「『学生による授業評価アンケート』における評価の向上とオンライン授業に対する評価の高さ：2018--2021年度の調査結果の分析」．『教育研究データ分析室紀要』第4号：1--18．

3. 飯田高，石田賢示，伊藤亜聖，勝又裕斗，加藤晋，庄司匡宏，ケネス・盛・マッケルウェイン．2022．「新型コロナウイルス感染症に関する壮年パネル調査－概要と記述統計分析－」．『社会科学研究』第73巻第2号．pp. 95–125．

4. 勝又裕斗．2021．「授業評価アンケートオンライン化対応について」．『教育研究データ分析室紀要』第3号：15--25．

5. 勝又裕斗．2021．「2020年度Sセメスター授業評価アンケートの分析」．『教育研究データ分析室紀要』第3号：26--32．

6. Hiroto Katsumata. "Book Review (Japanese Politics): Political Change in Japan: Electoral Behavior, Party Realignment, and the Koizumi Reforms. By Reed, Steven R., Kenneth Mori McElwain, and Kay Shimizu eds. Stanford, CA: Walter H. Shorenstein Asia-Paci.c Research Center, 2009. xii, 319p" The Journal of the Association of Political and Social Sciences 129 (3, 4): 390--3. [「学界展望（日本政治）．『国家学会雑誌』]

Other Working Papers

1. 因果推論

2. "Searching for Contributions by Moonlight: Politically Connected Firms in Japan" (with Yusaku Horiuchi and Rieko Kage)

3. "Navigated Weighting to Improve Inverse Probability Weighting for Missing Data Problems and Causal Inference" (R package: nawtilus)

4. "Item Response Theory for Conjoint Survey Experiments" (with Devin Caughey and Teppei Yamamoto)

4. "Causal Inference with Duration Data"

Presentations

Presentations (in English)

American Political Science Association (2015, 2016, 2018 * 2, 2020)

Midwest Political Science Association (2016 * 2)

Polmeth (2018, 2019)

Asian Polmeth (2019)

International Political Science Association (2016)

Winter Meeting of the Japanese Society for Quantitative Political Science (2021)

MIT Political Methodology Lab Speaker Series (2018)

UTokyo-Berkeley Strategic Partnership Seminar (2016)

Presentations (in Japanese)

Japanese Political Science Association (2014, 2015, 2016, 2019, 2021, 2022)

Japanese Association of Electoral Studies (2015, 2016, 2020, 2021, 2023)

Japan Association for Comparative Politics (2016, 2020, 2021)

Winter Meeting of the Japanese Society for Quantitative Political Science (2020, 2023)

The Workshop on the Frontiers of Statistical Analysis and Formal Theory of Political Science (2016, 2017)

Mejiro Political Science Workshop (2017)

Empirical Social Science Workshop (2015)

Political Science Spring Forum (2014, 2015) [現代政治過程研究フォーラム春季研究大会]

Grants, Honors, and Awards 

2021: Best Paper Award (2020), Japanese Association of Electoral Studies

2021--2024: KAKENHI (Grant-in-Aid for Early-Career Scientists), Japan Society for the Promotion of Science

2017--2019: Grant-in-Aid for JSPS Fellows (PD), Japan Society for the Promotion of Science

2017: Outstanding Dissertation Award, the University of Tokyo Graduate Schools for Law and Politics

2016: Best Poster Award (2015), Japanese Association of Electoral Studies

2014--2017: Grant-in-Aid for JSPS Fellows (DC1), Japan Society for the Promotion of Science

2012: Graduation with Honors for Excellent grades, the University of Tokyo Graduate Schools for Law and Politics [東京大学法学部主領域 (実定法系) 最優秀]

Reviewer

American Political Science Review * 3, Comparative Political Studies, Japanese Journal of Political Science * 2

『選挙研究』* 2