This report presents a comprehensive marketing plan for Sainsbury's, a major UK supermarket chain, focusing on marketing intelligence to enhance its competitive position. The report begins by explaining the consumer buying decision-making process, including need recognition, information search, evaluation of alternatives, purchase decision, and post-purchase evaluation. It then explores various buying behavior theories like cognitive dissonance and the diffusion of innovation model, alongside the Howard Sheth model, and identifies factors influencing buyer decisions such as cultural, social, personal, psychological, and economic elements. The report also examines the interrelationship between loyalty, repetitive buying, and corporate reputation. Task 2 outlines the objectives of market research, detailing primary and secondary research techniques, including surveys, interviews, and observation, and emphasizes the importance of secondary investigations. The report also covers reliability and validity in market research. Task 3 analyzes market trends, competitor analysis, and a SWOT framework for Sainsbury's. Finally, Task 4 discusses methods for evaluating buyer responses, including a satisfaction survey, and reviews the survey's success. The report concludes with recommendations for maximizing consumer satisfaction and strengthening Sainsbury's market position.