This essay explores the value chain model proposed by Porter in 1985 and its application in the case of Tesco. It discusses the background of Tesco, measures the internal environment using the value chain model, and reflects on its usefulness. The essay highlights the primary and supportive activities of the value chain model and how they contribute to Tesco's success. Overall, the value chain model helps Tesco create value for its customers and gain competitive advantages in the global market.