Most of the industrial sectors run related to the products being manufactured, target customers and geographies reachable. According to the principles of economics related to business, there are four types of industry infrastructures which are named as perfect competition, pure monopoly, monopolistic competition and oligopoly.

Perfect Competition
This kind of industry is comprising of industry infrastructure consisting of several numbers of small sellers and buyers. In this kind of industry infrastructure people will be having all the information about the products and prices. All the companies in this spectrum producing same goods will be having access to an equal amount of raw materials. The companies also have equal exposure to labor with expertise and technology to be used. In this category, there will not be any perfect leader because of the availability of products by all manufacturers.

Pure Monopoly
In this category there will be only one supplier and the product being manufactured will not be having any substitutes. This leader controls all the resources and the technology also will be held by the company. These types of companies block others from entering the competition. The monopoly of companies can be in the public or private form. These companies have profit maximization as the primary goal.

Monopolistic Competition
This kind of companies will be having competition with each other and at the same time having a monopoly in the sector. There will be many companies which produce products that can be used as a substitute and there will be any kind of buyers. Even after having competitors each company will be having a particular group of users preferring the brand. Better products and services make distinguishable quality among such companies.

Oligopoly
This kind of industrial infrastructures works independence with each other. Sometimes the companies sell the same products and there will not be anyone having brand related problems. In some other cases, different companies will be selling same products but with additional features.

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