Data analyzed in this article [paper, book, chapter, report] were from Taiwan Institute for Governance and Communication Research (TIGCR), 2021: Political Polarization Survey (TIGCR-PPS 2021). The principal investigators of multi-year project TIGCR are Professor Chi Huang (National Chengchi University) and Distinguished Research Fellow Chingching Chang (Research Center for Humanities and Social Sciences, Academia Sinica). TIGCR-PPS 2021 is the third year Face-to-face interview survey data of the TIGCR citizen's panel survey on "Political attitude, Policy-making and Governance Communication in Taiwan". The principal investigators are Professor Chi Huang and Distinguished Research Fellow Chingching Chang. More information is on TIGCR website (http://tigcr.nccu.edu.tw/). The author(s) appreciate the assistance in providing data by the institute and individual(s) aforementioned. The author(s) are alone responsible for views expressed herein. 

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