Researchers have proposed a new framework for equitable delivery zoning in last-mile logistics, which has been validated through implementation.[1115044] The value of last-mile delivery in online retail is being reevaluated as companies seek to improve the efficiency and sustainability of their supply chains.[1114703] In a study, an inventory management model was developed to optimize the delivery of malaria prevention products in the Democratic Republic of Congo during times of supply chain disruptions.[1115191]