氏名

ウエダ ミチコ

上田 路子

職名

准教授

所属政治経済学術院

(政治経済学部)

連絡先

メールアドレス

メールアドレス
mueda@waseda.jp

本属以外の学内所属

学内研究所等

ソーシャルメディアデータ研究所

研究所員 2016年-

ソーシャル&ヒューマン・キャピタル研究所

研究所員 2017年-

学歴・学位

学位

Ph.D. (Political Science) Massachusetts Institute of Technology

受賞

2012年度 日本選挙学会賞(優秀論文)

2013年08月授与機関:日本選挙学会

The Jewell-Loewenberg Award

2008年09月授与機関:American Political Science Association

論文

Tracking the Werther Effect on social media: Emotional responses to prominent suicide deaths on twitter and subsequent increases in suicide

Fahey, Robert A; Matsubayashi, Tetsuya; Michiko, Ueda

Social Science and Medicine査読有り2192018年12月-2018年12月 

DOIlink

詳細

概要:Rises in suicide rates following media reports of the deaths by suicide of public figures are a well-documented phenomenon. However, it remains unclear why, or by what exact mechanism, celebrity suicides act to increase suicidal risk in the wider public due to the lack of data showing how the public understands and reacts to the suicide of well-known figures. This study used a supervised machine learning approach to investigate the emotional content of almost 1 million messages sent on Twitter related to the suicides of 18 prominent individuals in Japan between 2010 and 2014. The results revealed that different demographic characteristics of the deceased person (age, gender, and occupation) resulted in significant differences in emotional response; notably that the suicides of younger people, of women and of people in entertainment careers created more emotional responses (measured as a ratio of emotionally-coded tweets within the overall volume of tweets for each case) than for older people, men, and those in other careers. Moreover, certain types of emotional response were shown to correlate to subsequent rises in the national suicide counts, with “surprised” reactions being positively correlated with the suicide counts, while a high proportion of polite messages of condolence were negatively correlated. The study demonstrates the importance of, and describes a methodology for, considering the content of social media messages, not just their volume, in research into the mechanism by which these widely-reported deaths increase suicide risk in the broader public.

Diurnal variation in suicide timing by age and gender: evidence from Japan across 41 years

Boo, Jeremy; Matsubayashi, Tetsuya; Ueda, Michiko

Journal of Affective Disorders査読有り2432019年01月-

DOIlink

詳細

概要:Background: Previous research on hourly diurnal variation in suicide frequency has often suffered from geographical and time-span limitations in the data. We studied diurnal and daily variations of suicide by analyzing a large dataset based on the national death registry in Japan between 1974 and 2014. Methods: The diurnal and daily patterns of 873,268 suicide deaths over 41 years were examined by sex and age group through Poisson regression and visual inspection. We also investigated whether these patterns are related to Japan's economic conditions. Results: Suicide by middle-aged males was most frequent in the early morning especially on Mondays after the end of Japan's high growth period. We also observed large midnight peaks in suicides among young and middle-aged males. The proportion of early morning suicide deaths by young and middle-aged males increased as the country's unemployment rose. Females and elderly males were more likely to die by suicide during the day than at night. Limitation: Our study examined time of death, not time of suicide attempt. It is possible that there is a discrepancy between the two. Conclusions: Different subpopulations die by suicide at different times of the day and days of the week. Time patterns of suicide varied considerably over time, suggesting that they cannot be explained by biological circadian rhythm alone. Our findings suggest that the patterns are partly explained by economic conditions. Future suicide prevention efforts should consider the time patterns of suicide unique to each subpopulation, especially when economic growth is depressed.

Tweeting celebrity suicides: Users’ reaction to prominent suicide deaths on Twitter and subsequent increases in actual suicides

Ueda, Michiko; Mori, Kota; Matsubayashi, Tetsuya; Sawada, Yasuyuki

Social Science and Medicine査読有り189p.158 - 1662017年09月-2017年09月 

DOIScopus

詳細

ISSN:02779536

概要:© 2017 Elsevier Ltd A substantial amount of evidence indicates that news coverage of suicide deaths by celebrities is followed by an increase in suicide rates, suggesting a copycat behavior. However, the underlying process by which celebrity status and media coverage leads to increases in subsequent suicides is still unclear. This study collected over 1 million individual messages (“tweets”) posted on Twitter that were related to 26 prominent figures in Japan who died by suicide between 2010 and 2014 and investigated whether media reports on suicide deaths that generated a greater level of reactions by the public are likely to be followed by a larger increase in actual suicides. We also compared the number of Twitter posts and the number of media reports in newspaper and on television to understand whether the number of messages on Twitter in response to the deaths corresponds to the amount of coverage in the traditional media. Using daily data from Japan's national death registry between 2010 and 2014, our analysis found an increase in actual suicides only when suicide deaths generated a large reaction from Twitter users. In contrast, no discernible increase in suicide counts was observed when the analysis included suicide deaths to which Twitter users did not show much interest, even when these deaths were covered considerably by the traditional media. This study also found suicides by relatively young entertainers generated a large number of posts on Twitter. This sharply contrasts with the relatively smaller volume of reaction to them generated by traditional forms of media, which focuses more on the deaths of non-entertainers. The results of this study strongly suggest that it is not sufficient to examine only traditional news media when investigating the impact of media reports on actual suicides.

Legislative term limits and government spending: Theory and evidence from the United States

Asako, Yasushi; Matsubayashi, Tetsuya; Ueda, Michiko

B.E. Journal of Economic Analysis and Policy査読有り16(3)p.1501 - 15382016年09月-2016年09月 

DOIScopus

詳細

概要:© by De Gruyter 2016.What are the fiscal consequences of legislative term limits? To answer this question, we first develop a legislative bargaining model that describes negotiations over the allocation of distributive projects among legislators with different levels of seniority. Building on several predictions from the model, we develop two hypotheses for empirical testing. First, the adoption of term limits that results in a larger reduction in the variance of seniority within a legislature increases the amount of government spending. Second, legislatures that adopt stricter term limits increase the amount of government spending, while legislatures that adopt moderate term limits show no change in the amount. We provide evidence for these hypotheses using panel data for 49 US state legislatures between 1980 and 2010.

School and seasonality in youth suicide: evidence from Japan

Matsubayashi, Tetsuya; Ueda, Michiko; Yoshikawa, Kanako

Journal of Epidemiology and Community Health査読有り70(11)p.1122 - 11272016年11月-2016年11月 

DOI

Suicides and accidents on birthdays: Evidence from Japan

Matsubayashi, Tetsuya; Ueda, Michiko

Social Science and Medicine査読有り159p.61 - 722016年06月-2016年06月 

DOI

The effectiveness of platform screen doors for the prevention of subway suicides in South Korea

Chung, Yong Woon; Kang, Sung Jin; Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko

Journal of Affective Disorders査読有り194p.80 - 832016年04月-2016年04月 

DOI

Relative age in school and suicide among young individuals in Japan: A regression discontinuity approach

Matsubayashi, Tetsuya; Ueda, Michiko

PLOS ONE査読有り10(8)2015年08月-2015年08月 

DOI

The effectiveness of installing physical barriers for preventing railway suicides and accidents: Evidence from Japan

Ueda, Michiko; Sawada, Yasuyuki; Matsubayashi, Tetsuya

Journal of Affective Disorders査読有り178p.1 - 42015年06月-2015年06月 

DOI

Does the installation of blue lights on train platforms shift suicide to another station?: Evidence from Japan

Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko

Journal of Affective Disorders査読有り169p.57 - 602014年12月-2014年12月 

DOI

The effects of media reports of suicides by well-known figures between 1989 and 2010 in Japan

Ueda, Michiko; Mori, Kota; Matsubayashi, Tetsuya

International Journal of Epidemiology査読有り43(2)p.623 - 6292014年04月-2014年04月 

DOI

The effect of public awareness campaigns on suicides: Evidence from Nagoya, Japan

Matsubayashi, Tetsuya; Ueda, Michiko; Sawada, Yasuyuki

Journal of Affective Disorders査読有り152p.526 - 5292014年01月-2014年01月 

DOI

Does the installation of blue lights on train platforms prevent suicide? A before-and-after observational study from Japan

Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko

Journal of Affective Disorders査読有り147(1-3)p.385 - 3882013年05月-2013年05月 

DOI

Natural disasters and suicide: Evidence from Japan

Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko

Social Science and Medicine査読有り82p.126 - 1332013年04月-2013年04月 

DOI

Government partisanship and human well-being

Matsubayashi, Tetsuya; Ueda, Michiko

Social Indicators Research査読有り107(1)p.127 - 1482012年05月-2012年05月 

DOI

The effect of national suicide prevention programs on suicide rates in 21 OECD nations

Matsubayashi, Tetsuya; Ueda, Michiko

Social Science and Medicine査読有り73(9)p.1395 - 14002011年11月-2011年11月 

DOI

Dynastic politicians: Theory and evidence from Japan

Asako, Yasushi; Iida, Takeshi; Matsubayashi, Tetsuya; Ueda, Michiko

Japanese Journal of Political Science査読有り16(1)p.5 - 322015年03月-2015年03月 

DOI

District population size and candidates' vote-seeking strategies: Evidence from Japan

Matsubayashi, Tetsuya; Ueda, Michiko; Uekami, Takayoshi

Journal of Elections Public Opinion and Parties査読有り25(2)p.159 - 1772015年-2015年

DOI

Maternal work conditions, socioeconomic and educational status, and vaccination of children: A community-based household survey in Japan

Ueda, Michiko; Kondo, Naoki; Takada, Misato; Hashimoto, Hideki

Preventive Medicine査読有り66p.17 - 212014年09月-2014年09月 

DOI

Disability and voting

Matsubayashi, Tetsuya; Ueda, Michiko

Disability and Health Journal査読有り7(3)p.285 - 2912014年07月-2014年07月 

DOI

The effects of uncontested elections on legislator performance

Konisky, David M; Ueda, Michiko

Legislative Studies Quarterly査読有り36(2)p.199 - 2292011年05月-2011年05月 

DOI

Political knowledge and the use of candidate race as a voting cue

Matsubayashi, Tetsuya; Ueda, Michiko

American Politics Research査読有り39(2)p.380 - 4132011年03月-2011年03月 

DOI

Do multimember districts lead to free-riding?

Snyder, James M.; Ueda, Michiko

Legislative Studies Quarterly査読有り32(4)p.649 - 6792007年11月-2007年11月 

DOI

Party and incumbency cues in voting: Are they substitutes?

Ansolabehere, Stephen; Hirano, Shigeo; Snyder, James M., Jr.; Ueda, Michiko

Quarterly Journal of Political Science査読有り1(2)p.119 - 1372006年-2006年

DOI

Did firms profit from soft money?

Stephen Ansolabehere; Snyder, James M., Jr.; Ueda, Michiko

Election Law Jaurnal3(2)p.193 - 1982004年-2004年

Incomplete observation, filtering, and the home bias puzzle

Ueda, Michiko

Economics Letters査読有り62(1)p.75 - 801999年01月-1999年01月 

DOI

書籍等出版物

Economic Analysis of Suicide Prevention

Yasuyuki Sawada; Michiko Ueda; Tetsuya Matsubayashi

Springer2017年 10月-2017年 10月

LINK

詳細

ISBN:978-981-10-1499-4

自殺のない社会へ

澤田康幸; 上田路子; 松林哲也

有斐閣2013年 06月-2013年 06月

詳細

総ページ数:238ISBN:978-4641173910

外部研究資金

科学研究費採択状況

研究種別:基盤研究(B)

自殺の社会経済的要因と自殺対策の実証分析:エビデンスに基づいた政策評価と提言

2017年04月-2020年03月

研究分野:財政・公共経済

配分額:¥16250000

研究資金の受入れ状況

提供機関:自殺総合対策推進センター制度名:平成30年度革新的自殺研究推進プログラム委託研究費

政治経済的要因に注目した日本における自殺対策と自殺率についての研究2018年07月-2019年03月

代表

提供機関:三菱財団制度名:三菱財団人文科学研究助成

自殺報道の過去30年間の変遷とその影響:5カ国データの比較実証研究2018年10月-2019年09月

代表

提供機関:自殺総合対策推進センター制度名:平成29年度革新的自殺研究推進プログラム委託研究費

OECD諸国における自殺対策の国際比較:効果検証と政策提言2017年10月-2018年03月

代表

提供機関:一般財団法人櫻田會制度名:政治研究助成金

市区町村議会における女性議員についての考察2018年02月-2019年01月

学内研究制度

特定課題研究

自殺報道と自殺の連鎖:ツイッターデータを用いたメカニズム分析

2016年度共同研究者:松林哲也, 澤田康幸

研究成果概要:本研究は著名人の自殺に関する SNS(ソーシャルネットワークサービス)上での人々の反応を分析した。具体的には、2010年から2014年に自殺で亡くなった23名の著名人の死亡記事が報道された前後におけるツイッターでの投稿数を分析した...本研究は著名人の自殺に関する SNS(ソーシャルネットワークサービス)上での人々の反応を分析した。具体的には、2010年から2014年に自殺で亡くなった23名の著名人の死亡記事が報道された前後におけるツイッターでの投稿数を分析した。その結果、自殺報道直後に死亡した著名人に関するツイッターでの投稿数は急増すること、しかしすべての著名人についての投稿数が増えるわけではなく、新聞などでは取り上げられているものの、ツイッターの利用者の間でほとんど話題になっていない著名人の自殺もあることが明らかになった。さらに、ツイッター上で話題になった著名人の自殺報道の後には自殺者数がより多く増加する傾向も明らかになった。

現在担当している科目

科目名開講学部・研究科開講年度学期
Research Design 01政治経済学部2018秋学期
Fresh-Start Seminar 02政治経済学部2018秋学期
Quantitative Political Analysis 01政治経済学部2018春学期
Advanced Seminar 1 11政治経済学部2018春学期
Advanced Seminar 2 11政治経済学部2018秋学期
Advanced Seminar 3 11政治経済学部2018春学期
Advanced Seminar 4 11政治経済学部2018秋学期
Thesis 11政治経済学部2018秋学期
Thesis 11政治経済学部2018春学期
実証政治経済学専門研究セミナーA(PS・上田路子)大学院政治学研究科2018春学期
実証政治経済学専門研究セミナーB(PS・上田路子)大学院政治学研究科2018秋学期
計量分析I(上田路子)大学院政治学研究科2018夏クォーター
現代政治文献研究(吉野/上田/久米/河野)大学院政治学研究科2018秋学期
実証政治経済学専門研究セミナー(博士・上田路子)大学院政治学研究科2018春学期
実証政治経済学専門研究セミナー(博士・上田路子)大学院政治学研究科2018秋学期
現代政治文献研究(吉野/上田/久米/河野)大学院経済学研究科2018秋学期