How Can mHealth Keep New Moms out of the Blue? Evidence of the Heterogeneous Treatment Effects on Depression from a Large-Scale Field Experiment

Benjamin Campbell   ^{1 *} ;   Yanfang Su   ^{2 *} ;   Weiguang Wang   ^{3 *} ;   Guodong Gao   ^{3 *}

¹ Depression Clinical and Research Program, Massachusetts General Hospital, Boston, MA, United States

² Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA, United States

³ Smith School of Business, University of Maryland, College Park, MD, United States

*all authors contributed equally