what is price line under perfect competition???
plss can i get these answere!!

in the chapter producer's equillibrium by MC - MR approach in perfect competition the 

price line is a horizontal straight line parellel to OX axis and price line = MR = AR = demand

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thnkx :D

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under perfect competition price line=AR=MR is parallel to ox-axis because under perfect competition a firm is a price taker & not a price maker & it has to sell all its units at the price given by industry.

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