The long run cost function for the production function F(L, K) = ALºK³ is c(q, w,r) = ( 4 )a‡³ watßratš ((2)a+³ + (1)ats). 1. Under what conditions on A, a, and 3 does the cost function exhibit economies of scale? 2. Under what conditions on A, a, and ß is c(\q, w, r) < \c(q, w, r) for λ > 1? 3. What is the relationship between your answers for the previous parts? What do your results say about the relationship between a cost function exhibiting economies of scale and a cost
The long run cost function for the production function F(L, K) = ALºK³ is c(q, w,r) = ( 4 )a‡³ watßratš ((2)a+³ + (1)ats). 1. Under what conditions on A, a, and 3 does the cost function exhibit economies of scale? 2. Under what conditions on A, a, and ß is c(\q, w, r) < \c(q, w, r) for λ > 1? 3. What is the relationship between your answers for the previous parts? What do your results say about the relationship between a cost function exhibiting economies of scale and a cost
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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![9 Question 9
The long run cost function for the production function F(L, K) = ALªK³ is
c(q,w,r) = (4) a‡ß watßrats ((2)a+³ + (2)a‡³).
1. Under what conditions on A, a, and ß does the cost function exhibit economies of scale?
2. Under what conditions on A, a, and ß is c(\q, w, r) < \c(q, w, r) for λ > 1?
3. What is the relationship between your answers for the previous parts? What do your results
say about the relationship between a cost function exhibiting economies of scale and a cost
function exhibiting increasing returns to scale?
4. Prove the relationship in general: that a cost function exhibits increasing returns to scale
if and only if it exhibits economies of scale. To do this, you should show the following two
statements:
• If c(Ag) < Ac(g) for all q and all \, then ) < c(?) whenever q′ > q (hint: remember
that λq > q since λ > 1).
q
• If there exists some › and q such that c(\q) > Ac(q), then there exists some q and q'
such that AC(q) < AC(q') and q' > q.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1858a710-c111-4513-9004-6c10bf7d1d6e%2F5b252ca2-4ffd-4e75-9b70-80ce493114e4%2Fyb502tj_processed.png&w=3840&q=75)
Transcribed Image Text:9 Question 9
The long run cost function for the production function F(L, K) = ALªK³ is
c(q,w,r) = (4) a‡ß watßrats ((2)a+³ + (2)a‡³).
1. Under what conditions on A, a, and ß does the cost function exhibit economies of scale?
2. Under what conditions on A, a, and ß is c(\q, w, r) < \c(q, w, r) for λ > 1?
3. What is the relationship between your answers for the previous parts? What do your results
say about the relationship between a cost function exhibiting economies of scale and a cost
function exhibiting increasing returns to scale?
4. Prove the relationship in general: that a cost function exhibits increasing returns to scale
if and only if it exhibits economies of scale. To do this, you should show the following two
statements:
• If c(Ag) < Ac(g) for all q and all \, then ) < c(?) whenever q′ > q (hint: remember
that λq > q since λ > 1).
q
• If there exists some › and q such that c(\q) > Ac(q), then there exists some q and q'
such that AC(q) < AC(q') and q' > q.
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