Principles of Macroeconomics 2e
2nd Edition
ISBN: 9781947172388
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 21, Problem 18SCQ
How does competition, whether domestic or foreign, harm businesses?
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1. A firm has the following demand function: P = 60 – 0.5Q and its total cost is defined by TC= 13+ Qa. Find the maximum revenue b. Find the production to optimize the profit. c. Verify if the marginal revenue and marginal cost are the same at the profit-maximizing productionlevel. Exercise 6From the point of view of the firm, what decision criteria have been found relevant in the analysis ofproduction and profit? Provide two refernces with your answer.
5. Some people find options expensive and use more complex structures to reduce the cost. For
example, consider buying a call with a strike of $55 and selling a call with a strike of $60.
a. What is the cost of establishing this combined position?
b. What is the payoff of the combined position if the market price goes to $60?
c. What is the payoff of the combined position if the market price goes to $100?
3. An investor has $1,000 to invest. They believe the price of the underlier will increase to $60
within one year.
a. How many shares of stock could they buy with the $1,000 at the current price of $50,
and how much would they make if the share price increased to $60?
b. How many calls with a strike of $55 could they buy for the same $1,000, and how
much would they make if the share price increased to $60?
c. How much would they make (or lose) from the stock and from the calls if the share
price declined to $40?
4. What is the premium on a call with a strike of $0.01? Why is the premium so close to the $50
share price?
Chapter 21 Solutions
Principles of Macroeconomics 2e
Ch. 21 - Explain how a tariff reduction causes an Increase...Ch. 21 - Explain how a subsidy on agricultural goods like...Ch. 21 - Explain how trade barriers save jobs in protected...Ch. 21 - Explain how trade barriers raise wages in...Ch. 21 - How does international trade affect working...Ch. 21 - Do the jobs for workers in low-income countries...Ch. 21 - How do trade barriers affect the average Income...Ch. 21 - How does the cost of saving jobs in protected...Ch. 21 - Explain how predatory pricing could be a...Ch. 21 - Why do low-income countries like Brazil, Egypt, or...
Ch. 21 - Explain the logic behind the race to the bottom...Ch. 21 - What are the conditions under which a country may...Ch. 21 - Why is the national security argument not...Ch. 21 - Assume a perfectly competitive market and the...Ch. 21 - What is the difference between a free trade...Ch. 21 - Why would countries promote protectionist laws,...Ch. 21 - What might account for the dramatic increase in...Ch. 21 - How does competition, whether domestic or foreign,...Ch. 21 - What are the gains from competition?Ch. 21 - Who does protectionism protect? From what does it...Ch. 21 - Name and define three policy tools for enacting...Ch. 21 - How does protectionism affect the price of the...Ch. 21 - Does international trade, taken as a whole,...Ch. 21 - Is international trade likely to have roughly the...Ch. 21 - How is international trade, taken as a whole,...Ch. 21 - Is international trade likely to have about the...Ch. 21 - What are main reasons for protecting infant...Ch. 21 - What is dumping? Why does prohibiting it often...Ch. 21 - What is the race to the bottom scenario?Ch. 21 - Do the rules of international trade require that...Ch. 21 - What is the national interest argument for...Ch. 21 - Name several of the international treaties where...Ch. 21 - What is the general trend of trade barriers over...Ch. 21 - If opening up to free trade would benefit a...Ch. 21 - Who gains and who loses from trade?Ch. 21 - Why is trade a good thing if some people lose?Ch. 21 - What are some ways that governments can help...Ch. 21 - Show graphically that for any tariff, there is an...Ch. 21 - From the Work It Out Effects of Trade Barriers,...Ch. 21 - If trade barriers hurt the average worker in an...Ch. 21 - Why do you think labor standards and working...Ch. 21 - How would direct subsidies to key industries be...Ch. 21 - How can governments identify good candidates for...Ch. 21 - Microeconomic theory argues that it is...Ch. 21 - How do you think Americans would feel if other...Ch. 21 - Is it legitimate to impose higher safety standards...Ch. 21 - Why might the unsafe consumer products argument be...Ch. 21 - Why might a tax on domestic consumption of...Ch. 21 - Why do you think that the GAIT rounds and, more...Ch. 21 - An economic union requires giving up some...Ch. 21 - What are some examples of innovative products that...Ch. 21 - In principle, the benefits of international trade...Ch. 21 - Economists sometimes say that protectionism is the...Ch. 21 - Trade has income distribution effects. For...Ch. 21 - Assume two countries, Thailand (T) and Japan (J),...Ch. 21 - You have just been put in charge of trade policy...Ch. 21 - The country of Pepperland exports steel to the...
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