Ren Y. The Underlying Logic of the Front-end Warehouse Model: Fulfillment Efficiency and Spatial Economics in Instant Retail. Financ. Econ. Insights [Internet]. 2026 Jun. 30 [cited 2026 Jul. 15];3(2):109-18. Available from: http://soapubs.com/index.php/FEI/article/view/2344