Supplemental Material, 817513_supplemental_materials - Targeted Promotions on an E-Book Platform: Crowding Out, Heterogeneity, and Opportunity Costs FongNathan ZhangYuchi LuoXueming WangXiaoyi 2019 <p>Supplemental Material, 817513_supplemental_materials for Targeted Promotions on an E-Book Platform: Crowding Out, Heterogeneity, and Opportunity Costs by Nathan Fong, Yuchi Zhang, Xueming Luo, and Xiaoyi Wang in Journal of Marketing Research</p>