Published on in Vol 1 , No 1 (2015) :Jan-Jun

1 Positive Psychology Center, Department of Psychology, University of Pennsylvania, Philadelphia, PA, US
2 Department of Computer and Information Science, University of Pennsylvania, Philadelphia, PA, US
3 Operations and Information Management, Wharton School, University of Pennsylvania, Philadelphia, PA, US
4 Social Media and Health Innovation Lab, Department of Emergency Medicine, University of Pennsylvania, Philadelphia, PA, US
5 Wharton School, University of Pennsylvania, Philadelphia, PA, US