This chapter explains key issues that executives face in managing resources to keep their firms competitive. Resource-based theory argues that firms will perform better when they assemble resources that are valuable, rare, difficult to imitate, and nonsubstitutable. When executives can successfully bundle organizational resources into unique capabilities, the firm is more likely to enjoy lasting success. Different forms of intellectual property—which include patents, trademarks, copyrights, and trade secrets—may also serve as strategic resources for firms. Examining a firm’s resources can be aided by the value chain, a tool that systematically examines primary and secondary activities in the creation of a good or service and by a knowledge of supply chain management that examines the value added of multiple firms working together. While resource-based theory provides a dominant view for examining the determinants of firm success, other perspectives provide insight for understanding specific behaviors of firms within an industry. Finally, SWOT analysis is a simple but powerful technique for examining the interactions between factors internal and external to the firm.