The value chain analysis is an internal analysis tool that serves to identify sources of competitive advantage

The value chain consists of four basic elements: support activities, main activities, value generating activities and the margin

The competitive advantage is achieved when the company develops and integrates the activities of its value chain in a better differentiated way than its rivals and therefore at a higher costs

Porter value chain is a complement of Porter 5 Forces that helps to understand where the value of the chain supplier - company - client ist.