User-generated content (UGC) is a ubiquitous phenomenon on the Internet. UGC inform, entertain, and facilitate conversations among online users. The three essays of this dissertation examine different antecedents of UGC characteristics with text analytics. The first essay explored the effects of psychological distance on UGC positivity and found that spatial and temporal distance boost UGC positivity. The second essay investigates the effects of social media integration on the linguistic characteristic of UGC and showed that social media integration leads to increased review quantity, while more emotional, less rational and less negative language in UGC content. The third essay examines the impact of book-to-film adaptation on the rating and linguistic characteristics of UGC. The results suggest that, after the release of book-to-film adaptations, book ratings decline, and the use of language reflecting viewing, comparison and affective processes increase in book reviews. To summarize, the three essays in this dissertation contributes to research on UGC by improving our understanding on the various antecedents of UGC characteristics. / Business Administration/Marketing

The intent of this study was to explore to what extent loneliness, need for belonging, and parent-child relationships relate to time spent communicating via social media. The study also focused on predicting social media integration and vaguebooking, an attention seeking behavior on social media. Results from a sample of 471 college students indicated that need for belonging was related to more time spent communicating with friends online. Parent-child relationship, social anxiety, and loneliness were not significantly correlated with social media use. Need for belonging predicted social media integration and loneliness predicted vaguebooking. Histrionic symptoms significantly predicted both social media integration and vaguebooking behaviors, indicating that for those with histrionic traits, social media may reinforce attention seeking behaviors.