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Short- and Long-Run Cost Curves

幫考網校2020-08-06 17:43:37

Short-run cost curves show the relationship between the quantity of output produced and the costs of producing that output when some inputs are fixed, while others can be varied. In the short run, firms can adjust their production levels by varying the amount of variable inputs, such as labor and raw materials, but they cannot change their fixed inputs, such as capital equipment and facilities.

The most important short-run cost curves are:

1. Total Fixed Cost (TFC): This is the cost of the fixed inputs that cannot be varied in the short run.

2. Total Variable Cost (TVC): This is the cost of the variable inputs that can be varied in the short run.

3. Total Cost (TC): This is the sum of TFC and TVC.

4. Average Fixed Cost (AFC): This is the TFC per unit of output.

5. Average Variable Cost (AVC): This is the TVC per unit of output.

6. Average Total Cost (ATC): This is the TC per unit of output.

7. Marginal Cost (MC): This is the additional cost of producing one more unit of output.

Long-run cost curves show the relationship between the quantity of output produced and the costs of producing that output when all inputs can be varied. In the long run, firms can adjust their production levels by varying all inputs, including capital equipment and facilities.

The most important long-run cost curves are:

1. Long-run Average Cost (LRAC): This is the lowest possible average cost of producing each unit of output in the long run.

2. Long-run Marginal Cost (LRMC): This is the additional cost of producing one more unit of output in the long run.

Overall, short-run cost curves help firms make decisions about how much to produce in the short term, while long-run cost curves help firms make decisions about how to optimize their production levels in the long term.