The document discusses the value chain concept. A value chain is a string of companies working together to satisfy market demand for a product. It analyzes the primary and support activities within a company that add value to products. The primary activities include inbound logistics, operations, outbound logistics, marketing and sales, and service. Support activities include firm infrastructure, human resource management, technology development, and procurement. Benefits of value chain analysis include streamlining supply chains and improving business performance. Limitations are that it assesses value theoretically rather than practically.