Market structure is a term used to describe the way a market is organized in terms of the number of firms and the distribution of market share between them. There are several synonyms for market structure including market form, industrial organization, competition style, and market type. Market form stresses the physical characteristics of the market, such as the degree of differentiation or homogeneity between products. Industrial organization, on the other hand, emphasizes the behavior and interactions of firms within a market. Competition style refers to how firms compete with one another, while market type is often used to classify markets by their characteristics, such as monopolistic competition, oligopoly, or perfect competition.