Abstract
1. Introduction
2. Theoretical Background
2.1 Review Helpfulness
2.2 Product Type
2.3 Theories of Emotion
2.4 Emotion and Review Helpfulness
3. Research Model and Hypothesis
3.1 Research Model
3.2 Hypothesis
4. Methodology
4.1 Data Collection
4.2 Variables
4.3 Analysis Method
5. Results
6. Conclusion
Acknowledgments
References