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The left-hand portion of the long-run average cost curve, where it is downward- sloping from output levels Q 1 to Q 2 to Q 3, illustrates the case of economies of scale. In this portion of the long-run average cost curve, larger scale leads to lower average costs. We illustrated this pattern earlier in Figure 7.9.
- References
Perez, Carlota. 2009. "Long Run Economic Transformation:...
- Problems
21.4 What Causes Changes in Unemployment over the Long Run;...
- Chapter 17
Over a sustained period of time, stocks have an average...
- Critical Thinking Questions
Critical Thinking Questions - 7.5 Costs in the Long Run -...
- Key Terms
Key Terms - 7.5 Costs in the Long Run - Principles of...
- Key Concepts and Summary
In the medium run of a few months or a few years, inflation...
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Review Questions - 7.5 Costs in the Long Run - Principles of...
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Self-Check Questions - 7.5 Costs in the Long Run -...
- References
- What Is Long-Run Average Total Cost (Lratc)?
- Understanding Long-Run Average Total Cost
- How to Visualize Long-Run Average Total Cost
- Example of Long-Run Average Total Cost
Long-run average total cost (LRATC) is a business metric that represents the average cost per unit of output over the long run, where all inputs are considered to be variable and the scale of production is changeable. The long-run average cost curve shows the lowest total cost to produce a given level of output in the long run. Long-term unit costs...
For instance, if a manufacturing company builds a new, larger plant for production, it is assumed that the LRATC per unit would eventually become lower than at the old plant as the company takes advantage of certain economies of scaleor the cost advantages that come from expanding the scale of production. When the scale of production is expanded, a...
The calculation of the LRATC may be represented as a curve showing the lowest costs that a company will be able to reach for any degree of output over time. The shape of that curve can closely resemble the curve calculated for short-run average total costs. The LRATC can be seen as made up of a series of short-run curves as a company improves its e...
For example, in the video game industry, the costs to produce a game are high. However, the cost of making copies of a game, once produced, is marginal. So, once a company can establish itself, expand the customer base for a specific game, and raise demand for that game, the extra output required to meet that demand lowers overall cost in the long ...
- Will Kenton
In this portion of the long-run average cost curve, larger scale leads to lower average costs. This pattern was illustrated earlier in Figure 7.4a. In the middle portion of the long-run average cost curve, the flat portion of the curve around Q 3, economies of scale have been exhausted.
- Emma Hutchinson, Emma
- 2017
A long run average cost curve is known as a planning curve. This is because a firm plans to produce an output in the long run by choosing a plant on the long run average cost curve corresponding to the output. It helps the firm decide the size of the plant for producing the desired output at the least possible cost.
However, if the long-run average cost curve has a wide flat bottom like Figure 3 (b), then firms of a variety of different sizes will be able to compete with each other. The flat section of the long-run average cost curve in Figure 3 (b) can be interpreted in two different ways. One interpretation is that a single manufacturing plant producing ...
Apr 29, 2024 · Definition of Long-Run Average Cost. Long-Run Average Cost (LRAC) is an economic concept that describes the average cost per unit of output that a firm can achieve when it adjusts all of its inputs in the long run. In other words, LRAC represents the cost per unit at which a firm can produce any given level of output when it is free to vary all ...
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Why is a long run average cost curve important?
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What is the long-run average cost (LRAC) curve?
Four possible short-run average total cost curves for Lifetime Disc are shown in Figure 8.9 “Relationship Between Short-Run and Long-Run Average Total Costs” for quantities of capital of 20, 30, 40, and 50 units. The relevant curves are labeled ATC20, ATC30, ATC40, and ATC50 respectively. The LRAC curve is derived from this set of short-run ...
