MORE THAN A MEGAPHONE: THE IMPACT OF SOCIAL MEDIA ON POLITICAL LEADERS' FOREIGN AFFAIRS COMMUNICATION IN THE U.S. AND TAIWAN

Hsuan-Yu Lin
This three-essay dissertation explores the impact of social media on international security, especially whether social media gives political leaders leverage to shape public opinion about foreign policy. The Democratic Peace Theory suggests public opinion is one of the main constraining factors of political leaders’ aggressive foreign policies. If social media empowers political leaders to shape public opinion, then social media may reduce political leaders’ potential costs of seeking a risky foreign policy. However, existing literature...
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