When firms in a competitive market have different costs, it is likely that:

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If firms in a competitive market have different costs, then some firms will have lower costs than others, allowing them to earn economic profits in the long run. This does not necessarily mean that the market is no longer competitive or that free entry and exit in the market is violated. However, in the long run, firms with higher costs may exit the market, resulting in a downward-sloping long-run market supply curve.

When Firms in a Competitive Market Have Different Costs, It