The document analyzes the fast food industry in the United States using the U-Curve model and BCG matrix. It finds that international companies like McDonald's and Yum! Brands have had the most success expanding in emerging markets. McDonald's maintains a global supply chain and distribution system to ensure product quality and freshness across its many locations worldwide. The value chain analysis traces the revenue allocation among McDonald's franchises, suppliers, distribution centers, and freight carriers. Relationship marketing emphasizes customer retention through satisfying customer needs and building long-term relationships.