In some industries, there are no substitutes and there is no competition. In a market that has only one or few suppliers of a good or service, the producer can control price, meaning that a consumer does not have choice, cannot maximize his or her total utility and has have very little influence over the price of goods. 1. A monopoly is a market structure in which there is only one producer and one seller for a product. In other words, the single business is the industry. Entry into such a market is restricted due to high costs or other impediments, which may be economic, social or political.. 1-Pricing power controlled by companies (constrained by demand curve and possible) 2- the economic efficiency is low allocative but economies of scale and reinvested Profits .
2. In an oligopoly, there are only a few firms that make up an industry. This select group of firms has control over the price and, like a monopoly, an oligopoly has high barriers to entry. The products that the oligopolistic firms produce are often differentiated and, therefore, the companies, which are competing for market share (through pricing , quality and services), are interdependent as a result of market forces. 1-Pricing power controlled by companies (interdependent behavior) 2- the economic efficiency is low allocative but scale economies and innovation
3. Perfect competition is characterized by many buyers and sellers, many products that are similar in nature and, as a result,. There