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I need someone to do my microeconomics homework!1

Group Homework # 1

Problem # 1

Demand for a firm’s product is: P = 140 – 6Q. The firm’s cost equation is: C = 300 +


a) Determine the firm’s optimal quantity and price.

b) Suppose that demand changes to P = 80 – 6Q. Determine the new optimal quantity and

price. Explain why the results differ from those in part a.

Problem # 2

The University Eye Institute in upper New-York state is a state-of-the-art ophthalmology

center that specializes in a sophisticated laser surgery to correct myopia. Current annual

volume is 1000 operations. A major customer of the center is the United Health Insurance

system. United currently sends the University Eye Institute 200 patients per year or 20%

of the total.

United pays $2,500 per operation as does every payor. The United Health Insurance

Company is satisfied with the quality and service provided by the University Eye

Institute and has proposed that they send the Center an additional 100 patients

(operations) per year. United proposes that the fee be reduced to $2,000 for the additional

100 patients and for the prior 200 patients. Assume the fee paid by payors other than

United Health remains the same.

a) What is the marginal revenue per patient if the proposal is accepted?

b) What is the marginal cost per patient if the proposal is accepted?

Here are some cost data to help you answer part b.
Volume 1000 per year 1100 per year

Average Total Cost $2,125 $2,100

c) Would you recommend that the proposal be accepted or not? Why?


Problem # 3

Night Timers is a small company manufacturing glow-in-the-dark products. One of the

hottest items the engineering department has developed is adhesive tape that can be

applied to walls and floors. Night Timers’ chief engineer anticipates that the product will

be sold in ten-foot rolls. At present, the company’s maximum production capacity is

140,000 rolls per year. The engineer believes the cost function to be described by: C =

$60,000 + .5Q. (The high fixed costs represent development cost and tooling to prepare

coating equipment). Night Timers’ president seeks to establish a price that maximizes

profit (since she is the chief stockholder). She thinks that the firm should be able to sell at

least 120,000 rolls of tape per year.

a) If Night Timers plans to sell 120,000 rolls per year, what is the necessary price if the

firm is to break even? What if it can only sell 100,000?

b) The marketing manager forecasts demand for the tape to be: Q = 400,000 – 200,000P.

Find the firm’s profit-maximizing output and price.

c) If the demand forecast in part b is realized in the first year of production, should the

company consider expanding capacity? Explain.

Problem # 4

Idea Inc. is a small publishing company operating in the college and textbook market,

which is one of the most profitable segments for book publishers. Idea Inc. has a cost of


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