Thi Van Trang Tran, Thi Hoang Linh Ho, Manh Hung Huynh*, Thi Hanh Trinh Do; Nhu Hoai Bao Pham. Packaging and Social Signals Associated With Vietnamese consumers’ Stated Willingness to Pay a Premium for Green Last-Mile Delivery Packaging. VMOST JOSSH 2026, 68.