This report provides a comprehensive analysis of Samsung's market structure, focusing on the application of management economics principles. It begins with an introduction to managerial economics and its relevance to business decision-making, using Samsung's TV products as a case study. The report examines the characteristics of the oligopoly market in which Samsung operates, including interdependence, advertising, barriers to entry, and competition. It then explores the shift towards a monopolistic competition market, particularly with the emergence of competitors like Xiaomi. The analysis covers the characteristics of monopolistic competition, such as many buyers and sellers, profit maximization, low barriers to entry, and non-price competition. The report also discusses the impact of government interventions and concludes with an assessment of the optimal market structure for Samsung.