PRINCIPLES OF ECONOMICS
14th Edition
ISBN: 2810015433483
Author: OpenStax
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 42P
A small company that shovels sidewalks and driveways has 100 homes signed up for its services this winter. It can use various combinations of capital and labor: intensive labor with hand shovels, less labor with snow blowers, and still less labor with a pickup truck that has a snowplow on front. To summarize, the method Choices are:
Method 1: 50 units of labor, 10 units of capital
Method 2: 20 units of labor, 40 units of capital
Method 3: 10 units of labor, 70 units of capital
If hiring labor for the winter costs $100/unit and a unit of capital costs
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Exercise 6
Imagine that you head production of a multinational food processing company. The ongoing uncer-
tainty about costs means that you are unsure of the future cost of one of your inputs, x2. Your firm's
production function is
y = f(x1, x2) = x²x²²
The output price p is 1000, x1 = 27, and wx₁ = 60.
1. Suppose the current input price is Wx2
=
50. Solve for the optimal choice of x2.
2. Now suppose that the probability the input price remains 50 is 0.65 and the probability that
Wx2
60 is 0.35. Solve for the optimal choice of x2. Round down to the nearest integer.
=
3. Finally, suppose the costs do actually rise, i.e., Wx2 = 60. Calculate the difference in profit from
the uncertainty in (2) vs. the certainty in (1).
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Chapter 7 Solutions
PRINCIPLES OF ECONOMICS
Ch. 7 - A firm had sales revenue of 1 million last year....Ch. 7 - Continuing from Exercise 7.1, the films factory...Ch. 7 - The WipeOut Ski Company manufactures skis for...Ch. 7 - Based on your answers to the WipeOut Ski Company...Ch. 7 - If two painters can paint 200 square feet of wall...Ch. 7 - Return to the problem explained in Table 7.13 and...Ch. 7 - Suppose the cost of machines increases to 55,...Ch. 7 - Automobile manufacturing is an industry subject to...Ch. 7 - What are explicit and implicit costs?Ch. 7 - Would you consider an interest payment on a loan...
Ch. 7 - What is die difference between accounting and...Ch. 7 - What is a production function?Ch. 7 - What is the difference between a fixed input and a...Ch. 7 - How do we calculate marginal product?Ch. 7 - What shapes would you generally expect a total...Ch. 7 - What are the factor payments for land, labor, and...Ch. 7 - What is the difference between fixed costs and...Ch. 7 - How do we calculate each of the following:...Ch. 7 - What shapes would you generally expect each of the...Ch. 7 - Are there fixed costs in the lung-run? Explain...Ch. 7 - Are fixed costs also sunk costs? Explain.Ch. 7 - What are diminishing marginal returns as they...Ch. 7 - Which costs are measured on per-unit basis: fixed...Ch. 7 - What is a production technology?Ch. 7 - In choosing a production technology, how will...Ch. 7 - What is a long-run average cost curve?Ch. 7 - What is the difference between economies of scale,...Ch. 7 - What shape of a long-run average cost curve...Ch. 7 - Why will firms in most markets be located at or...Ch. 7 - Small Mom and Pop firms, like inner city grocery...Ch. 7 - A common name for fixed cost is overhead. If you...Ch. 7 - How does fixed cost affect marginal cost? Why is...Ch. 7 - Average cost curves (except for avenge fixed cost)...Ch. 7 - What is the relationship between marginal product...Ch. 7 - It is clear that businesses operate in the short...Ch. 7 - Retune to Table 7.2. In the top half of the table,...Ch. 7 - How would an improvement in technology, like the...Ch. 7 - Do you think that the taxicab industry in large...Ch. 7 - A firm is considering an investment that will earn...Ch. 7 - Return to Figure 7.7. What is the marginal gain in...Ch. 7 - Compute the average total cost, average variable...Ch. 7 - A small company that shovels sidewalks and...
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