Answer: A competitive advantage exists when an organization evaluates its core competency to all the opportunities it has discovered in it's market environment.
One of the way a firm can achieve a competitive advantage at the corporate level is by INCORPORATION WITH ANITHER FIRM (corporate mergers). The skills, talents and abilities one corporation possesses can be combined with the competencies of another organization and matched to opportunities been found in the marketplace.
At the business-unit level, an organization can develop a competitive advantage by bringing in growth in those products or services that the organization has mastered and those that also have great customer-market potential, that is the business that has a larger toneover for for company. when a company has the foresight to diversify and create new markets and/or products which capitalize on existing skills and knowledge, so as to maximize profit for the firm.
Explanation: The business unit level can be maximize by recognizing the performance of each business unit and allocating more resources accordingly.
The strategy of the corporate level determines the means of using resource and getting resources to reach the organization goal.