Delight submit four essays each a minimum of 500 words addressing the following concepts as well as issues: (1) Describe what is meant by sustained competitive advantage. Focus your essay on customer's product offerings, costs of production resource allocation as well as profitability. (2) Deliberate a typical company's mission statement including reference to the mission, vision, values, and major goals. (3) Define what is meant by the role of mobility barriers among strategic groups. Include in your essay discussion of life cycle analysis. (4) Describe what is meant by the value chain. Comprise in your essay description of primary, secondary and support activities