Classification of markets is based on Monopoly and Oligopoly market structures?

Market classification into Monopoly and Oligopoly is based on the number of firms and the degree of market control. In a Monopoly, a single firm dominates the market, controlling prices and supply, which can lead to higher prices and reduced consumer choice. In contrast, Oligopoly consists of a few firms that hold significant market power, often leading to interdependent pricing and strategic behavior among competitors. Both structures can result in inefficiencies and a lack of competition compared to more fragmented markets like perfect competition.