SRATC or small plant SRATC tor medium plant SRATC for arge plant LRATC S500 Diseconomies of Scale S400+ Economies of Scale Constant Retums 1,000 1,200 Quantity of Computers (per day) Notice that the long-rum average total cost (LRATO aurve is much flatter than the short-run average total cost (SRATO curve. This is because frms can be more flexible in the long run-they can choose vtich short-run cost cure they want to operate along, by choosing their plant scale. But they cannot do this in the short run, during wtich they are stuck with their eesting short-run cost curve. That is, in the short run, the fim operates with the short run curve it has based on past decisions. However, in the long run, the firm is able to choose the short run curve it wants to use. In Exhibit 1 above, explain why the curve between A and B looks different than the curve from A to C. Provide an example of how a firm could opt to follow the A to C curve instead of the A to B curye.

Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter11: The Firm: Production And Costs
Section: Chapter Questions
Problem 21P
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Section 11.5
The Short-Run and Long-Run Average Total Cost Curves
exhibit 1
SRATC for
small plant
SRATC for
medium plant
SRATC tor
large plant
LRATC
B
$500
$400
Economies
of Scale
Constant Returns
to Saie
1,000 1,200
Quantity of Computers
(per day)
Notice that the long-run average total cost (LRATC) curve is much flatter than the short-run average total cost (SRATC) curve. This is because firms
can be more flexible in the long run-they can choose which short-run cost curve they want to operate along, by choosing their plant scale. But they
cannot do this in the short run, during which they are stuck with their existing short-run cost curve. That is, in the short run, the firm operates with the
short-run curve it has based on past decisions. However, in the lang run, the firm is able to choose the short-run curve it wants to use.
In Exhibit 1 above, explain why the curve between A and B
looks different than the curve from A to C. Provide an example
of how a firm could opt to follow the A to C curve instead of the
A to B curve.
Average Cost
Transcribed Image Text:Section 11.5 The Short-Run and Long-Run Average Total Cost Curves exhibit 1 SRATC for small plant SRATC for medium plant SRATC tor large plant LRATC B $500 $400 Economies of Scale Constant Returns to Saie 1,000 1,200 Quantity of Computers (per day) Notice that the long-run average total cost (LRATC) curve is much flatter than the short-run average total cost (SRATC) curve. This is because firms can be more flexible in the long run-they can choose which short-run cost curve they want to operate along, by choosing their plant scale. But they cannot do this in the short run, during which they are stuck with their existing short-run cost curve. That is, in the short run, the firm operates with the short-run curve it has based on past decisions. However, in the lang run, the firm is able to choose the short-run curve it wants to use. In Exhibit 1 above, explain why the curve between A and B looks different than the curve from A to C. Provide an example of how a firm could opt to follow the A to C curve instead of the A to B curve. Average Cost
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