Posted: August 25th, 2021
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Energy and Environmental Economics
Question 1
The two commodities include 𝑥1 and 𝑥2 and consumers are A and B. Endowment refers to goods that consumers initially possess, in this case, for A aris units of 𝑥1 and 6 units of 𝑥2 that is, (𝜔1𝐵, 𝜔2𝐵) = (9, 6).while B has 18 units of 𝑥1 and 3 units of 𝑥2, that is, (𝜔1𝐵, 𝜔2𝐵) = (18, 3).
Income, I = endowment, w1 *price, p1 + endowment, w2 * price, p2
But; p1 *commodity, x1 + p2*commodity, x2 should equal the price.
Hence;
for consumer A
d
but w1A = 9, and p1 =$1 hence at equilibrium, x1=x2 => $9
Question 2: ConditionsCharacterizing Allocative Efficiency
Allocative efficiency is concerned about how the resources are allocated particularly about societal preferences. Every commodity is produced to a level at which the last unit utilized in production offers marginal benefit to the consumers equivalent to marginal production cost. For instance, the point of allocative efficiency is indicated where the price is equivalent to the marginal cost. Based on this background, allocated efficiency for the three components can be derived as follows;
The constrained maximizing problem;
subject to
Where X and Y are commodities and A and B are consumers.
Using first-order Lagrangian conditions,
First-order conditions for consumption of individuals A and B is obtained by setting the Langrangian consumption equation:
Max. The utility of A for commodity X
Maximum utility for A is attained when:
Max. The utility of B for commodity Y
The maximum utility of B is attained when
Production efficiency is attained when based on the level of satisfaction a consumer gets from the goods produced. Thus:
subject to
For efficient production:
Langrangian equation for production:
Efficiency allocation is attained when:
Using eq. 1, efficiency in product mix will be;
Question 3
Honey farm production cost => CH (H, A) =
Orchard farm production cost => CA (H, A) =
Where H and A are pounds of honey and apple production.
The market price of honey,PH = $7 and for apples, PA= $5
For a competitive market, production should be efficient, implying that the orchard company has to minimize costs of production apples while ensuring maximum production. Thus,
Minimize CA (H, A) => = 1 eq. 1
Acquiring a honey farm implies incurring the costs of production in the two commodities. Thus, to minimize costs and attain efficiency in production, the following equation applies;
Minimize CA (H, A) =
Question 4: Given Social Welfare Function as:
Where UA(XA) is the utility function of a person A form consumption of X and UB(XB) is the utility function of a person B from consumption of X. Total consumption cannot exceed endowment of X, given by XA + XB ≤𝑋 ̅.
Unequal distribution of goods can occur at welfare maximum if weights attached to individual utilities are unequal and/or when individuals have different utility functions.
Demonstration
To start with, consumers should choose XA and XB to maximize utility represented as;
Subject to constraints;
XA + XB ≤𝑋̅
Langrangian equation to formulate the problem:
XA – XB ) eq. 1
First-order
conditions:
looking at eq. 1 and eq. 2, it implies that,
eq. 4
When both consumers are using similar utility function such that;
UA(XA) = UB(XB) = U (X), then utility maximization condition becomes;
In this case, WA unequal to WB condition becomes available if XA is unequal to XB that essentially implies there is no equal distribution of goods. If there is a difference in utility function but WA equal to WB, dividing both sides by WA gives;
but only true if XA is unequal to XB.
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