The value chain, also known as value chain analysis, is a concept from business management that was first described and popularized by Michael Porter in his 1985 best-seller, Competitive Advantage: Creating and Sustaining Superior Performance.
A value chain is a chain of activities for a firm operating in a specific industry. The business unit is the appropriate level for construction a value chain, not the divisional level or corporate level. Products pass through all activities of the chain in order and at each activity the product gains some value. The chain of activities gives the products more added value than ...