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In the context of our analysis of the Edgeworth production box, suppose that a new invention changes a constant-returns-to-scale food production process into one that exhibits sharply increasing returns. How does this change affect the production contract curve?

Short Answer

Expert verified

If a new invention would change the constant returns to scale to increasing return to scale, this will not affect the production contract curve.

Step by step solution

01

Step 1. No effect on the production contract curve

We know that an Edgeworth production box depicts the production contract curve, which results from tangency between the different points on the isoquants of the individual production processes.

If supposedly there is a change from a constant-returns-to-scale production process to a sharply-increasing-returns-to-scale due to a new invention, this will not necessarily change the shape of the isoquants. It is because the marginal productivity of the inputs will remain the same, there will be no change in the marginal rate of technical substitution.

We know that the shape of the contract curve depends upon the marginal rate of technical substitution between two goods. Since we have already established that the MRTS will not change due to change in return from constant to increasing, we could conclude that the shape of the production contract curve would remain the same, and there will be no effect of this change.

For example: Consider Y=LK changes to Y=L2K2

In both cases, the MRTS=K/L, hence there is no change in the production contract curve.

The change can be seen only because of the change in the trade-off between the used inputs (affecting the shape of isoquant)

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Most popular questions from this chapter

Give an example of conditions when the production possibilities frontier might not be concave.

The Acme Corporation producesxandyunits of goods Alpha and Beta, respectively.

a. Use a production possibility frontier to explain how the willingness to produce more or less Alpha depends on the marginal rate of transformation of Alpha or Beta.

b. Consider two cases of production extremes:

(i) Acme produces zero units of Alpha initially, or

(ii) Acme produces zero units of Beta initially.

If Acme always tries to stay on its production possibility frontier, describe the initial positions of cases(i) and (ii). What happens as the Acme Corporation begins to produce both goods?

Suppose gold (G) and silver (S) are substitutes for each other because both serve as hedges against inflation. Suppose also that the supplies of both are fixed in the short run (QG= 75 andQS= 300) and that the demandsfor gold and silver are given by the following

equations:

PG= 975 -QG+ 0.5PSandPS= 600 -QS+ 0.5PG.

a. What are the equilibrium prices of gold and silver?

b. What if a new discovery of gold doubles the quantity supplied to 150? How will this discovery affect the prices of both gold and silver?

Suppose a bakery has 16 employees to be designatedas bread bakers (B) and cake bakers (C), sothat B + C = 16. Draw the production possibilitiesfrontier for bread (y) and cakes (x) for the followingproduction functions:

a. y = 2B0.5 and x = C0.5

b. y = B and x = 2C0.5

In the analysis of an exchange between two people, suppose both people have identical preferences. Will the contract curve be a straight line? Explain. Can you think of a counter example?

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