The Hourglass Model: From Consumer's Behavior to Delivery Diogo Correia Publication Conference Name: 11th Annual International Conference on Industrial Engineering and Operations Management Singapore Year of Publication: 2021 Correia, D. (2021). The Hourglass Model: From Consumer's Behavior to Delivery. In 11th Annual International Conference on Industrial Engineering and Operations Management Singapore. Identifiers Other Numbers: 21698767 Locators Alternative titles Google ScholarBibTeXRIS