LONG-RUN ADJUSTMENT, PERFECT COMPETITION: The combined adjustment of a perfectly competitive industry and of each firm in the industry to an equilibrium condition that eliminates all economic profits and losses, while each firm selects a factor size that maximizes profit. This adjustment process involves two parts. One is the adjustment of each perfectly competitive firm to the appropriate factory size that maximizes long-run profit. The other is the entry of firms into the industry or exit of firms out of the industry, to eliminated economic profits or economic losses. The end result of this long-run adjustment is a multi-faceted equilibrium condition: P = AR = MR = MC = LRMC = ATC = LRAC

     See also | long run | perfect competition | industry | profit maximization | economic profit | normal profit | average revenue | marginal revenue | average total cost | long-run equilibrium conditions |

LONG-RUN ADJUSTMENT, PERFECT COMPETITION, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 1, 2025].

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A circular flow model of the macroeconomy containing four sectors (business, household, government, and foreign) and three markets (product, factor, and financial) that illustrates the continuous movement of the payments for goods and services between producers and consumers, with particular emphasis on exports and imports. Other circular models are two-sector, two-market circular flow; two-sector, three-market circular flow; and three-sector, three-market circular flow.

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