Principles of Macroeconomics 2e
2nd Edition
ISBN: 9781947172388
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 10, Problem 26RQ
What are the two main sides of the national savings and investment identity?
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Tasks
Exercise 1
Assess the following functions:
1. f(x)= x2+6x+2
2.f '(x)=10x-2x2+5
a. Find the stationary points. (5 marks)
b. Determine whether the stationary point is a maximum or minimum. (5 marks)
c. Draw the corresponding curves (5 marks)
Problem 2:
The sales data over the last 10 years for the Acme Hardware Store are as follows:
2003
$230,000
2008
$526,000
2004
276,000
2009
605,000
2005
328,000
2010
690,000
2006
388,000
2011
779,000
2007
453,000
2012
873,000
1. Calculate the compound growth rate for the period of 2003 to 2012.
2. Based on your answer to part a, forecast sales for both 2013 and 2014.
3. Now calculate the compound growth rate for the period of 2007 to 2012.
1. Based on your answer to part e, forecast sales for both 2013 and 2014.
5. What is the major reason for the differences in your answers to parts b and d? If you were to
make your own projections, what would you forecast? (Drawing a graph is very helpful.)
Exercise 4A firm has the following average cost: AC = 200 + 2Q – 36
Q
Find the stationary point and determine if it is a maximum or a minimum.b. Find the marginal cost function.
Chapter 10 Solutions
Principles of Macroeconomics 2e
Ch. 10 - If foreign investors buy more U.S. stocks and...Ch. 10 - If the trade deficit of the United States...Ch. 10 - State whether each of the following events...Ch. 10 - In what way does comparing a countrys exports to...Ch. 10 - At one point Canadas GDP was 1,800 billion and its...Ch. 10 - The GDP for the United States is 18,036 billion...Ch. 10 - Why does the trade balance and the current account...Ch. 10 - State whether each of the following events...Ch. 10 - How does the bottom portion of Figure 23.3,...Ch. 10 - Explain the relationship between a current account...
Ch. 10 - Using the national savings and Investment...Ch. 10 - If a country is running a government budget...Ch. 10 - What determines the size of a countrys trade...Ch. 10 - If domestic Investment increases, and there is no...Ch. 10 - Why does a recession cause a trade deficit to...Ch. 10 - Both the United States and global economies are...Ch. 10 - For each of the following, indicate which type of...Ch. 10 - How did large trade deficits hurt the East Asian...Ch. 10 - Describe a scenario in which a trade surplus...Ch. 10 - The United States exports 14 of GDP while Germany...Ch. 10 - Explain briefly whether each of the following...Ch. 10 - If imports exceed exports, is it a trade deficit...Ch. 10 - What is included in the current account balance?Ch. 10 - In recent decades, has the U.S. trade balance...Ch. 10 - Does a trade surplus mean an overall inflow of...Ch. 10 - What are the two main sides of the national...Ch. 10 - What are the main components of the national...Ch. 10 - When is a trade deficit likely to work out well...Ch. 10 - Does a trade surplus help to guarantee strong...Ch. 10 - What three factors will determine whether a nation...Ch. 10 - What is the difference between trade deficits and...Ch. 10 - Occasionally, a government official will argue...Ch. 10 - A government official announces a new policy. The...Ch. 10 - If a country is a big exporter, is it more exposed...Ch. 10 - If countries reduced trade barriers, would the...Ch. 10 - Is it better for your country to be an...Ch. 10 - Many think that the size of a trade deficit is due...Ch. 10 - If you observed a country with a rapidly growing...Ch. 10 - Occasionally, a government official will argue...Ch. 10 - What is more important, a countrys current account...Ch. 10 - Will nations that are more involved in foreign...Ch. 10 - Some economists warn that the persistent trade...Ch. 10 - In 2001, the United Kingdoms economy exported...Ch. 10 - Imagine that the U.S. economy finds itself in the...Ch. 10 - Table 23.7 provides some hypothetical data on...Ch. 10 - Imagine that the economy of Germany finds itself...
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