Question

In: Economics

1. Consider the case of The Electric Company which produces electricity in New York State. The...

1. Consider the case of The Electric Company which produces electricity in New York State. The average monthly demand curve for the firm can be represented by P=65-Q where Q represents the quantity of electricity produced, in megawatt-hours (mwh) and P is measured in cents. Their marginal costs can be represented by MC=5+0.5*Q. Please provide graphs to accompany your analysis.

b. In the case above, is this profit-maximizing outcome efficient?  If not, calculate any deadweight loss.  

Solutions

Expert Solution

Answer : b) Given,

P = 65 - Q

TR (Total Revenue) = P * Q = (65 - Q) * Q

=> TR = 65Q - Q^2

MR (Marginal Revenue) = TR / Q

=> MR = 65 - 2Q

MC = 5 + 0.5Q [Given]

Here at equilibrium condition, MR = MC.

=> 65 - 2Q = 5 + 0.5Q

=> 65 - 5 = 0.5Q + 2Q

=> 60 = 2.5Q

=> Q = 60 / 2.5

=> Q = 24

Now, P = 65 - 24

=> P = 41

Therefore, the inefficient output level is, Q = 24 and price is, P = $41.

This profit maximizing output is not efficient. Because the efficient outcome occur when P = MC.

=> 65 - Q = 5 + 0.5Q

=> 65 - 5 = 0.5Q + Q

=> 60 = 1.5Q

=> Q = 60 / 1.5

=> Q = 40

Now P = 65 - 40

=> P = 15

Therefore, efficient output level is, Q = 40 and price is, P = $15.

Deadweight loss = 0.5 * P * Q

=> Deadweight loss = 0.5 * (41- 15) * (40 - 24)

=> Deadweight loss = 0.5 * 26 * 16

=> Deadweight loss = 208

Therefore, here the deadweight loss is $208.

These results are showing by the following picture's diagram.


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