Principles of Macroeconomics 2e
2nd Edition
ISBN: 9781947172388
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 18CTQ
What may happen if growth in China continues or contracts?
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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?
1. We want to examine the comparative statics of the Black Scholes model. Complete the
following table using the Excel model from class or another of your choice. Provide the call
premium and the put premium for each scenario.
Underlier
Risk-free
Scenario
price
rate
Volatility
Time to
expiration
Strike
Call
premium
Put
premium
Baseline
$50
5%
25%
1 year
$55
Higher strike
$50
5%
25%
1 year
$60
Higher volatility
$50
5%
40%
1 year
$55
Higher risk free
$50
8%
25%
1 year
$55
More time
$50
5%
25%
2 years
$55
2. Look at the baseline scenario.
a. What is the probability that the call is exercised in the baseline scenario?
b. What is the probability that the put is exercised?
c. Explain why the probabilities sum to 1.
Chapter 12 Solutions
Principles of Macroeconomics 2e
Ch. 12 - In the Keynesian framework, which of the following...Ch. 12 - In a Keynesian framework, using an AD/AS diagram,...Ch. 12 - Use the AD/AS model to explain bow an inflationary...Ch. 12 - Suppose the U.S. Congress cuts federal government...Ch. 12 - How would a decrease in energy prices affect the...Ch. 12 - Does Keynesian economics require government to set...Ch. 12 - List three practical problems with the Keynesian...Ch. 12 - Name some economic events not related to...Ch. 12 - Name some government policies that cod cause...Ch. 12 - From a Keynesian point of view, which is more...
Ch. 12 - Why do sticky wages and prices increase the impact...Ch. 12 - Explain what economists mean by menu costs.Ch. 12 - What tradeoff does a Phillips curve show?Ch. 12 - Would you expect to see long-run data trace out a...Ch. 12 - What is the Keynesian prescription for recession?...Ch. 12 - How did the Keynesian perspective address the...Ch. 12 - In its recent report, The Conference Boards Global...Ch. 12 - What may happen if growth in China continues or...Ch. 12 - Does it make sense that wages would be sticky...Ch. 12 - Suppose the economy is operating at potential GDP...Ch. 12 - Do you think the Phillips curve is a useful tool...Ch. 12 - Return to the table from the Economic Report of...Ch. 12 - Explain what types of policies the federal...
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