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(4) No barriers to entry. The firms in a competitive market have complete freedom of entering into the market or leaving the industry as and when they desire. There are no legal, social or technological! barriers for the new firms (or new capital) to enter or leave the industry. Any new firm is free to start production if it so desires and stop production and leave the industry if it so wishes. The industry, thus, is characterized by freedom of entry and exit of firms.

(5) Complete information. Another condition for perfect competition is that the consumers and producers possess perfect information about the prevailing price of the product in the market. The consumers know the ruling price, the producers know costs, the workers know about wage rates and so on. In brief, the consumers, the resource owners have perfect knowledge about the current price of the product in the market. A firm, therefore, cannot charge higher price than that ruling in the market. If it does so, its goods will remain unsold as buyers will shift to some other seller.

(6) Profit maximization. For perfect competition to exist, the sole objective of the firm must be to get maximum profit. Importance:

Perfect competition model is hotly debated in economic literature. It is argued that the model is based on unrealistic assumptions. It is rare in practice. The defenders of the model argue that the theory of perfect competition has positive aspect and leads us to correct conclusions. The concept is useful in the analysis of international trade and in the allocation of resources. It also makes us understand as to how a firm adjusts its output in a competitive world. Distinction Between Pure Competition and Perfect Competitions:

For a pure competition to exist, there are three main requisites, i.e., (1) homogeneity of product (2) large number of firms and (3) ease of entry and exist of firms.

A perfect competition, on the other hand, is made up of all the six postulates stated earlier.