why is the retail market for pcs more competitive than monopoly?
Retail market is a market composed of price quotes for a security made by a broker or a dealer to an individual investor.
Monopoly is a situation in which a single company or group owns all or nearly all of the market for a given type of product or service. By definition, monopoly is characterized by an absence of competition, which often results in high prices and inferior products. So that it is less competitive than retail market.