Objective of strategy --
Sustainable competitive advantage is the ultimate objective of strategy. It is demonstrated by ongoing economic performance of the organization which exceeds, by a statistically significant amount, the performance of other organizations, year after year.

Views of sustainable advantage -- A more dynamic view of advantage is advantage sustained by an evolutionary organization, one which adapts over time to the changing competitive environment. Barney (1991), has a more specific view of advantage. See competitive advantage and VRIN Framework for an elaboration.