Principles of Economics 2e
2nd Edition
ISBN: 9781947172364
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 26CTQ
Why are generic pharmaceuticals significantly cheaper than name brand ones?
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QUESTION 2
[20]
2.1 Body Mass Index (BMI) is a summary measure of relative health. It is calculated by dividing an
individual's weight (in kilograms) by the square of their height (in meters).
A small sample was drawn from the population of UWC students to determine the effect of exercise
on BMI score. Given the following table, find the constant and slope parameters of the sample
regression function of BMI = f(Weekly exercise hours). Interpret the two estimated parameter
values.
X (Weekly exercise hours) Y (Body-Mass index)
QUESTION 3
2
4
6
8
10
12
41
38
33
27
23
19
Derek investigates the relationship between the days (per year) absent from work (ABSENT) and the
number of years taken for the worker to be promoted (PROMOTION). He interviewed a sample of 22
employees in Cape Town to obtain information on ABSENT (X) and PROMOTION (Y), and derived
the following:
ΣΧ
ΣΥ
341
ΣΧΥ
176 ΣΧ
1187
1012
3.1 By using the OLS method, prove that the constant and slope parameters of the…
QUESTION 2
2.1
[30]
Mariana, a researcher at the World Health Organisation (WHO), collects information
on weekly study hours (HOURS) and blood pressure level when writing a test
(BLOOD) from a sample of university students across the country, before running the
regression BLOOD = f(STUDY). She collects data from 5 students as listed below:
X (STUDY)
2
Y (BLOOD)
4
6
8
10
141
138
133
127
123
2.1.1 By using the OLS method and the information above derive the values for parameters
B1 and B2.
2.1.2 Derive the RSS (sum of squares for the residuals).
2.1.3 Hence, calculate ô
2.2
2.3
(6)
(3)
Further, she replicates her study and collects data from 122 students from a rival
university. She derives the residuals followed by computing skewness (S) equals -1.25
and kurtosis (K) equals 8.25 for the rival university data. Conduct the Jacque-Bera test
of normality at a = 0.05.
(5)
Upon tasked with deriving estimates of ẞ1, B2, 82 and the standard errors (SE) of ẞ1
and B₂ for the replicated data.…
If you were put in charge of ensuring that the mining industry in canada becomes more sustainable over the course of the next decade (2025-2035), how would you approach this? Come up with (at least) one resolution for each of the 4 major types of conflict: social, environmental, economic, and political
Chapter 9 Solutions
Principles of Economics 2e
Ch. 9 - Classify the following as a government-enforced...Ch. 9 - Classify the following as a government-enforced...Ch. 9 - Suppose the local electrical utility, a legal...Ch. 9 - If Congress reduced the period of patent...Ch. 9 - Suppose demand for a monopolys product falls 50...Ch. 9 - Imagine a monopolist could charge a different...Ch. 9 - How is monopoly different from perfect...Ch. 9 - What is a barrier to entry? Give some examples.Ch. 9 - What is a natural monopoly?Ch. 9 - What is a legal monopoly?
Ch. 9 - What is predatory pricing?Ch. 9 - How is intellectual property different from other...Ch. 9 - What legal mechanisms protect intellectual...Ch. 9 - In what sense is a natural monopoly natural?Ch. 9 - How is the demand curve perceived by a perfectly...Ch. 9 - How does the demand curve perceived by a...Ch. 9 - Is a monopolist a price taker? Explain briefly.Ch. 9 - What is the usual shape of a total revenue curve...Ch. 9 - What is the usual shape of a marginal revenue cuwe...Ch. 9 - How can a monopolist identify the...Ch. 9 - How can a monopolist identify the...Ch. 9 - When a monopolist identifies its profit-maximizing...Ch. 9 - Is a monopolist allocatively efficient? Why or why...Ch. 9 - How does the quantity produced and price charged...Ch. 9 - ALCOA does not have the monopoly power it once...Ch. 9 - Why are generic pharmaceuticals significantly...Ch. 9 - For many years, the Justice Department has tried...Ch. 9 - Intellectual property laws are intended to promote...Ch. 9 - Imagine that you ale managing a small firm and...Ch. 9 - If a monopoly firm is earning profits, how much...Ch. 9 - Return to Figure 9.2. Suppose P0 is 10 and P1 is...Ch. 9 - Draw the demand curve, marginal revenue, and...Ch. 9 - Draw a monopolists demand curve, marginal revenue,...
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Similar questions
- How is the mining industry related to other Canadian labour industries? Choose one other industry, (I chose Forestry)and describe how it is related to the mining industry. How do the two industries work together? Do they ever conflict, or do they work well together?arrow_forwardWhat is the primary, secondary, tertiary, and quaternary levels of mining in Canada For each level, describe what types of careers are the most common, and describe what stage your industry’s main resource is in during that stagearrow_forwardHow does the mining industry in canada contribute to the Canadian economy? Describe why your industry is so important to the Canadian economy What would happen if your industry disappeared, or suffered significant layoffs?arrow_forward
- What is already being done to make mining in canada more sustainable? What efforts are being made in order to make mining more sustainable?arrow_forwardWhat are the environmental challenges the canadian mining industry face? Discuss current challenges that mining faces with regard to the environmentarrow_forwardWhat sustainability efforts have been put forth in the mining industry in canada Are your industry’s resources renewable or non-renewable? How do you know? Describe your industry’s reclamation processarrow_forward
- How does oligopolies practice non-price competition in South Africa?arrow_forwardWhat are the advantages and disadvantages of oligopolies on the consumers, businesses and the economy as a whole?arrow_forward1. After the reopening of borders with mainland China following the COVID-19 lockdown, residents living near the border now have the option to shop for food on either side. In Hong Kong, the cost of food is at its listed price, while across the border in mainland China, the price is only half that of Hong Kong's. A recent report indicates a decline in food sales in Hong Kong post-reopening. ** Diagrams need not be to scale; Focus on accurately representing the relevant concepts and relationships rather than the exact proportions. (a) Using a diagram, explain why Hong Kong's food sales might have dropped after the border reopening. Assume that consumers are indifferent between purchasing food in Hong Kong or mainland China, and therefore, their indifference curves have a slope of one like below. Additionally, consider that there are no transport costs and the daily food budget for consumers is identical whether they shop in Hong Kong or mainland China. I 3. 14 (b) In response to the…arrow_forward
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