Principles of Macroeconomics 2e
2nd Edition
ISBN: 9781947172388
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 15, Problem 10RQ
How is a central bank different from a typical commercial bank?
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Suppose that a random sample of 216 twenty-year-old men is selected from a population and that their heights and weights are recorded. A regression of weight on height
yields
Weight = (-107.3628) + 4.2552 x Height, R2 = 0.875, SER = 11.0160
(2.3220) (0.3348)
where Weight is measured in pounds and Height is measured in inches.
A man has a late growth spurt and grows 1.6200 inches over the course of a year. Construct a confidence interval of 90% for the person's weight gain.
The 90% confidence interval for the person's weight gain is ( ☐ ☐) (in pounds). (Round your responses to two decimal places.)
Suppose that (Y, X) satisfy the assumptions specified here. A random sample of n = 498 is drawn and yields
Ŷ= 6.47 + 5.66X, R2 = 0.83, SER = 5.3
(3.7)
(3.4)
Where the numbers in parentheses are the standard errors of the estimated coefficients B₁ = 6.47 and B₁ = 5.66 respectively.
Suppose you wanted to test that B₁ is zero at the 5% level. That is,
Ho: B₁ = 0 vs. H₁: B₁ #0
Report the t-statistic and p-value for this test.
Definition
The t-statistic is
(Round your response to two decimal places)
☑
The Least Squares Assumptions
Y=Bo+B₁X+u, i = 1,..., n, where
1. The error term u; has conditional mean zero given X;: E (u;|X;) = 0;
2. (Y;, X¡), i = 1,..., n, are independent and identically distributed (i.i.d.) draws from
i
their joint distribution; and
3. Large outliers are unlikely: X; and Y, have nonzero finite fourth moments.
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Chapter 15 Solutions
Principles of Macroeconomics 2e
Ch. 15 - Why is it important for the members of the Board...Ch. 15 - Given the danger of bank runs, why do banks not...Ch. 15 - Bank runs are often described as self-fulfilling...Ch. 15 - If the central bank sells 500 in bonds to a bank...Ch. 15 - What would be the effect of increasing the banks...Ch. 15 - Why does contractionary monetary policy cause...Ch. 15 - Why does expansionary monetary policy causes...Ch. 15 - Why might banks want to hold excess reserves in...Ch. 15 - Why might the velocity of money change...Ch. 15 - How is a central bank different from a typical...
Ch. 15 - List the three traditional tools that a central...Ch. 15 - How is bank regulation linked to the conduct of...Ch. 15 - What is a bank run?Ch. 15 - In a program of deposit insurance as it is...Ch. 15 - In government programs of bank supervision, what...Ch. 15 - What is the lender of last resort?Ch. 15 - Name and briefly describe the responsibilities of...Ch. 15 - Explain how to use an open market operation to...Ch. 15 - Explain how to use the reserve requirement to...Ch. 15 - Explain how to use the discount rate to expand the...Ch. 15 - How do the expansionary and contractionary...Ch. 15 - How do tight and loose monetary policy affect...Ch. 15 - How do expansionary, tight, contractionary, and...Ch. 15 - Which kind of monetary policy would you expect in...Ch. 15 - Explain how to use quantitative easing to...Ch. 15 - Which kind of monetary policy would you expect in...Ch. 15 - How might each of the following factors complicate...Ch. 15 - Define the velocity of the moneyCh. 15 - What is the basic quantity equation of money?Ch. 15 - How does a monetary policy of inflation target...Ch. 15 - Why do presidents typically reappoint Chairs of...Ch. 15 - In what ways might monetary policy be superior to...Ch. 15 - The term moral hazard describes increases in risky...Ch. 15 - Explain what would happen if banks were notified...Ch. 15 - A well-known economic model called the Phillips...Ch. 15 - How does rule-based monetary policy differ from...Ch. 15 - Is it preferable for central banks to primarily...Ch. 15 - Suppose the Fed conducts an open market purchase...Ch. 15 - Suppose the Fed conducts an open market sale by...Ch. 15 - All other things being equal, by how much will...Ch. 15 - Suppose now that economists expect the velocity of...Ch. 15 - If GDP is 1,500 and the money supply is 400, what...Ch. 15 - If GDP now rises to 1,600, but the money supply...Ch. 15 - If GDP now falls back to 1,500 and the money...
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