Value chain analysis allows the firm to understand the parts of its operations that create value and those that do not.
the firm earns above-average returns only when the value it creates is greater than the costs incurred to create that value
The value chain is a template that firms use to analyze their cost position and to identify the multiple means that can be used to facilitate implementation of a chosen strategy.
are activities or tasks the firm completes in order to produce products and then sell, distribute, and service those products in ways that create value for customers
value chain activities
include the activities or tasks the firm completes in order to support the work being done to produce, sell, distribute, and service the products the firm is producing
support function
A firm can develop a capability and/or a core competence in any of the value chain activities and in any of the support functions. When it does so, it has established an ability to create value for customers.
Judgment is necessary when using value chain analysis because no obviously correct model or rule is universally available to help in the process.
What should a firm do about value chain activities and support functions in which its resources and capabilities are not a source of core competence?