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2. A small town is served by many competing supermarkets, which have the same constant marginal cost. a. Using a diagram of t
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A) When the market is competitive,the firm will set P=MC for profit maximization where Q=QC and P=PC,so there is no producer surplus or deadweight loss in the market as the market is producing an efficient output.

RAC. PC Qc

B) When the market changes into a monopoly,the firm will set MC=MR for profit maximization where Q=QM and P=PM, so that the consumer surplus decreases,the blue shaded area is transferred to the producer and the grey area represents the deadweight loss.

PM AC, MR QM

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2. A small town is served by many competing supermarkets, which have the same constant marginal cost. a. Using a diagram of the market for groceries, show the consumer surplus, producer surplus,...
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