This assignment explores the market structure adopted by Rolls-Royce, a leading manufacturer of aircraft engines. It categorizes Rolls-Royce as a monopoly due to its unique products and limited competition within the UK market. The analysis delves into characteristics defining this market structure, highlighting factors like its single supplier status, product distinctiveness, entry barriers, and information control. Additionally, Porter's Five Forces framework is applied to understand the competitive dynamics influencing Rolls-Royce's position in the industry.