The long-run average total cost curve shows the relationship between output and the average total cost when fixed cost has been chosen to minimize average total cost for each level of output.

Long-Run Average Total Cost Curve

A graphical representation illustrating the per unit cost of producing a good or service in the long run, when all inputs are variable.

Fixed Cost

Expenses that do not change with the level of output or sales in the short term, such as rent, salaries, and insurance.

Output

The total amount of goods or services produced by a company, industry, or economy over a certain period.