involve abandonment costs.

Long run market supply with free entry and exit

Supposing that everyone in a market for a good has access to the same technology used for production of the good and can access the same market where inputs for the production can be bought to ensure a homogenous good and a perfect competition. In such a scenario all firms have in the market and all firms that can potentially enter the market have a uniform cost curve. In the short run the number of firms in the

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