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This case is used in Darden's first-year core operations class as part of a module on supply chain management. The Musictoday company provided online retailing services for such clients as the Dave Matthews Band and the Rolling Stones. But the lack of a formal inventory-management process had Musictoday concerned about future stockouts that would result in lost sales. This case covers the basics of safety stock within the context of a periodic review system. It introduces students to the periodic review system and provides them with an opportunity to link the optimal review period with the EOQ concept.

By late March 2014, the ridesharing company Uber was on a roll, rapidly expanding service to untapped markets and gaining new, enthusiastic customers, as well as a few vocal and visible detractors. Uber’s innovative organization of the supply-demand matching process produced eager customers who recruited others. Buzz marketing and aggressive recruitment of drivers augmented growth.

This case presents Uber as an example of a middleman adding real value for consumers and upstream suppliers (limo drivers). Unlike Tesla, which battled to sell cars directly to the public, Uber created value by adding a layer between limos and prospective riders, organizing the market for convenience and transparency for both sides. Where Uber stirred up the competitive equivalent of a hornet’s nest was with expansion from the livery car market into the taxi service market with UberX. The material allows for a lively discussion around disruptive digital technology and the firm’s business model.