The document discusses analyzing a firm's external environment including the general environment, industry environment, and competitor environment. It describes the components of the general environment and how they can affect firm strategy. It also explains Michael Porter's five forces model for analyzing industry competition including the threat of new entrants, bargaining power of suppliers and buyers, threat of substitutes, and rivalry among existing competitors. Finally, it provides guidance on conducting a competitor analysis by examining a competitor's objectives, strategies, assumptions, and capabilities.