The document discusses collaborative behavior among shipping lines with respect to container interchange. It proposes that container repositioning costs, which total $20 billion annually, could be reduced by 19% through a virtual container pool (VCP). The VCP would involve multiple carriers pooling information on empty container stocks and borrowing or lending containers to address shortages and surpluses. While equipment interchange agreements exist among carrier alliances, the feasibility of broader collaboration is examined. A survey found carriers agree collaboration could help address empty container imbalances. Hypothetical models showed collaboration savings from a VCP of $17.5 billion annually, or a 19.29% reduction in repositioning costs. However, some container types may face barriers to interchange