@article{Bond2019, author = "Samuel D. Bond and Stephen X. He and Wen Wen", title = "{Supplemental Material, jmr.15.0418-web-appendix - Speaking for “Free”: Word of Mouth in Free- and Paid-Product Settings}", year = "2019", month = "1", url = "https://sage.figshare.com/articles/journal_contribution/Supplemental_Material_jmr_15_0418-web-appendix_-_Speaking_for_Free_Word_of_Mouth_in_Free-_and_Paid-Product_Settings/7655345", doi = "10.25384/SAGE.7655345.v1" }