Birchbox – the trailblazing subscription box service that launched in 2010 – had created a mixed-integer programming formulation to determine the products that would be sent to its subscribers in individual boxes on a monthly basis. The goal is to produce a set of different box configurations that are then assigned to customers – so that Birchbox can meet the diverse needs of its varied customer base.
As the business grew, the mixed-integer program was taking days to solve, and it was impossible to experiment with different business requirements to determine the best set of configurations. The RIP (Reciprocating Integer Programming) technique was created to reduce solution times to typically under 20 minutes using Gurobi, which has dramatically changed the way that Birchbox can run its subscription business.
濃縮21封貝佐斯致股東信精華，構建四階段成長循環，總結14條事業成長法則，揭開貝佐斯透過哪些教訓、心態和步驟，塑造出亞馬遜今日的偉大成就。
不論組織型態、規模大小、行業別等，任何企業主、領導人、執行長、經理人和員工個人，都可以應用這些法則，快速地讓自己的事業變得更有效率、更有生產力、更成功。
