Business-level strategy is – applicable in those organizations, which have different businesses-and each business is treated as strategic business unit (SBU). The fundamental concept in SBU is to identify the discrete independent product/market segments served by an organization. Since each product/market segment has a distinct environment, a SBU is created for each such segment.

For example, Reliance Industries Limited operates in textile fabrics, yarns, fibers, and a variety of petrochemical products. For each product group, the nature of market in terms of customers, competition, and marketing channel differs. Therefore, it requires different strategies for its different product groups. Thus, where SBU concept is applied, each SBU sets its own strategies to make the best use of its resources (its strategic advantages) given the environment it faces. At such a level, strategy is a comprehensive plan providing objectives for SBUs, allocation of re-sources among functional areas and coordination between them for making optimal contribution to the achievement of corporate-level objectives.

Such strategies operate within the overall strategies of the organization. The corporate strategy sets the long-term objectives of the firm and the broad constraints and policies within which a SBU operates. The corporate level will help the SBU define its scope of operations and also limit or enhance the SBUs operations by the resources the corporate level assigns to it. There is a difference between corporate-level and business level strategies.

For example, Andrews says that in an organization of any size or diversity, corporate strategy usually applies to the whole enterprise, while business strategy, less comprehensive, defines the choice of product or service and market of individual business within the firm. In other words, business strategy relates to the ‘how’ and corporate strategy to the ‘what’. Corporate strategy defines the business in which a company will compete preferably in a way that focuses resources to convert distinctive competence into competitive advantage.’

Corporate strategy is not the sum total of business strategies of the corporation but it deals with different subject matter. While the corporation is concerned with and has impact on business strategy, the former is concerned with the shape and balancing of growth and renewal rather than in market execution.