Resources that are bought in the market can provide a temporary competitive advantage, but they are unlikely to sustain a competitive advantage in the long term. This is because resources that are bought in the market are available to competitors as well, so they can be easily imitated or substituted. In order to achieve a sustained competitive advantage, a company must possess resources that are valuable, rare, difficult to imitate, and organized to capture value. These resources are known as strategic resources, and they are typically developed and accumulated over time through a combination of internal development, strategic partnerships, and acquisitions.