자료유형  

 학위논문

Control Number  

0016934727

International Standard Book Number  

9798380135092

Dewey Decimal Classification Number  

384

Main Entry-Personal Name  

Ma, Siyuan.

Publication, Distribution, etc. (Imprint  

[S.l.] : Michigan State University., 2023

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2023

Physical Description  

1 online resource(84 p.)

General Note  

Source: Dissertations Abstracts International, Volume: 85-02, Section: A.

General Note  

Advisor: Bergan, Daniel;Peng, Tai-Quan.

Dissertation Note  

Thesis (Ph.D.)--Michigan State University, 2023.

Restrictions on Access Note  

This item must not be sold to any third party vendors.

Summary, Etc.  

요약Politicians' expressed affective polarization has been considered an important but less studied factor that reflects their ideology and further influences emotions in the general public. The current study has explored the changes in politicians' expressed affective polarization level from 2011 to 2022, and examined the influence of politicians' ideology extremity, electoral incentives, and legislative performance on their expressed affective polarization. By collecting Twitter data and applying supervised machine-learning models, the current study has depicted that politicians' expressed affective polarization level increased rapidly in the past 12 years, much faster than the increase of ideological polarization. By analyzing the two-way fixed-effects panel data (N = 796 elites, T = 6 terms in 12 years), the current study has found that ideological extremity positively influences expressed affective polarization, while legislative performance nearly has no influence. Electoral incentives negatively impact the overall expressed affective polarization but positively impact the in-party liking expressions. However, the ideological extremity, electoral incentives, and legislative performance effect sizes are small. Meanwhile, the overall social media expression, the 2016 presidential election, and the power of control in Congress have important influences on politicians' expressed affective polarization. The findings indicate that the media environment, political events, and politicians' status could have a larger impact than expected. Further study directions are also discussed in the dissertation.

Subject Added Entry-Topical Term  

Communication.

Subject Added Entry-Topical Term  

Political science.

Subject Added Entry-Topical Term  

Public policy.

Index Term-Uncontrolled  

Ideological extremity

Index Term-Uncontrolled  

Polarization

Index Term-Uncontrolled  

Political communication

Index Term-Uncontrolled  

Social media use

Index Term-Uncontrolled  

Supervised machine learning

Added Entry-Corporate Name  

Michigan State University Communication - Doctor of Philosophy

Host Item Entry  

Dissertations Abstracts International. 85-02A.

Host Item Entry  

Dissertation Abstract International

Electronic Location and Access  

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Control Number  

joongbu:644104