The document discusses collaboration in the container shipping industry, specifically regarding container inventory management. It provides background on collaboration, noting that independent firms can achieve common goals through collaboration. It then discusses the historical development of collaboration in the form of liner conferences between shipping lines. More recently, major shipping lines have formed alliances that facilitate vessel sharing and equipment interchange. The document proposes that shipping lines could form a virtual container pool to help manage empty container repositioning at a lower cost. By collaboratively exchanging containers based on supply and demand imbalances between ports, the lines could save an estimated $15.8 million annually for Sri Lanka trade alone. It concludes by recommending increased industry awareness, research, and a software tool to help facilitate