This factor is one to which investors pay close attention when evaluation a business. A sustainable competitive advantage is achieved by implementing a value-creating strategy that is unique and not easy to imitate. This type of advantage is achievable when a firm has strategic resources and the ability to use them in unique ways that create value for a group of targeted customers.
This is business concept of a firm to introduce a product, service, or technique that provides an outgoing benefit of competitive significance.
For example, Federal Express has sustained its leading position in the delivery business because it continues to invest in its strategic systems.