Macroeconomics
13th Edition
ISBN: 9781337617390
Author: Roger A. Arnold
Publisher: Cengage Learning
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Question
Chapter 18, Problem 1QP
To determine
Explain income tax rate cut that causes rise in the tax revenue and a decline in budget deficit.
Expert Solution & Answer
Explanation of Solution
Cutting income tax leads to an increase in tax revenue of government and decrease in the budget deficit. Therefore, if the total amount of taxable income by government increases by more than the tax cut amount, the tax revenue will increase. Increase in tax revenue leads to a fall in the government budget deficit.
Economics Concept Introduction
Tax rate: The percentage of the tax base that must be paid in tax is termed tax rate.
Tax base: The total amount of income that can be taxed by a taxing authority is termed tax base.
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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)
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(5)
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