The document discusses physical distribution and distribution channels. It defines physical distribution as moving tangible products through distribution channels. Physical distribution management involves activities like order processing, inventory control, inventory location and warehousing, materials handling, and transportation. When designing marketing channels, marketers consider factors like setting distribution objectives, specifying distribution tasks, developing alternative channel structures, evaluating relevant variables, and selecting channel members. Channel structure dimensions include the number of levels, intensity at various levels, and types of intermediaries. Variables affecting channel structure are market variables, product variables, company variables, intermediary variables, and environmental/behavioral variables. The key is developing a channel structure that aligns with objectives and considers all relevant factors.