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Choose the correct option(s) with respect to free entry and exit assumption of a perfectly competitive market.

(A) At equilibrium, no firm earns supernormal profit.

(B) As new firms enter the market, the supply curve shifts leftward.

(C) Equilibrium price will be equal to the minimum average cost.

(D) At equilibrium, no firm incurs losses by remaining in production.

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 2

With free entry and exit, long-run equilibrium leaves every firm with only normal profit, so no supernormal profit (A) and no losses (D), and price equals minimum average cost (C). Entry of new firms shifts the market supply curve rightward, not leftward, so (B) is incorrect.

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