ABSTRACT
Ⅰ. Introduction
Ⅱ. Relevant Literature and Contributions
2.1. Social Media Endorsements and Marketing Outcomes
Ⅲ. Theory and Hypotheses
3.1. Mandatory Endorsement Solicitation
3.2. Company Self-Promotion
3.3. User “Buzz”
3.4. Control Variables
Ⅳ. Methods
4.1. Sample and Data Collection
4.2. Empirical Analysis
4.3. Robustness Checks
Ⅴ. Discussion
Ⅵ. Contributions and Implications
Ⅶ. Limitations and Future Research