ECON 201 Midterm Examination Winter Study Guide, Exams of Economics

A midterm examination guide for the econ 201 course at concordia university. It covers multiple-choice questions on various economic concepts such as opportunity cost, production possibilities, price indices, data types, demand shifts, price ceilings, income elasticity, tax incidence, and marginal abatement curves. The guide provides detailed explanations and solutions to these questions, making it a valuable resource for students preparing for the midterm exam. The document could be useful for university students enrolled in an introductory economics course, particularly those studying microeconomics and related topics. The guide covers a wide range of economic principles and their practical applications, providing a comprehensive review of the course material and offering insights into the types of questions that may appear on the midterm examination.

Typology: Exams

2023/2024

Available from 08/09/2024

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ECON 201 DEPARTMENT OF ECONOMICS MIDTERM
EXAMINATION WINTER STUDY AHEAD SOLUTION GUIDE
CONCORDIA UNIVERSITY
Multiple Choice Questions (3 marks each).
1. Suppose you give up a job that pays $30,000 a year in order to pursue your university
education. Every year, you pay $4,000 for tuition and books, and $16,000 for food and
rent. What is your opportunity cost of spending one year in university?
a) $ 46,000.
b) $ 50,000.
c) $ 34,000.
d) $ 30,000.
2. Suppose that Zoe and Ben can produce bar soaps and DVDs. For a given day, Zoe can make
either 10 soaps and 0 DVD or 0 soaps and 20 DVDs or other combinations in between. Ben
can make either 5 soaps and 0 DVDs or 0 soaps and 15 DVDs or other combinations in
between. Assuming that Zoe and Ben are self-sufficient and they split their day to produce
both soaps and DVDs. What would be the consumption bundles for Zoe and Ben?
a) Zoe consumes (5S, 20DVD) and Ben consumes (5S, 10DVD).
b) Zoe consumes (10S, 10DVD) and Ben consumes (5S, 7.5DVD).
c) Zoe consumes (8S, 2DVD) and Ben consumes (5S, 8DVD).
d) Zoe consumes (5S, 10DVD) and Ben consumes (2.5S, 7.5DVD).
3. A basket of goods in 2005 costs $625, while the value of the same basket in 2010 costs
$800. If the base year is 2005, what is the value of this price index in 2005?
a) 100.
b) 78.125.
c) 128.
d) 155.
4. Which of the following would be considered as cross section data?
a) The mortgage payments of Anna, Ben and John between 2005 and 2010.
b) The rise in the cost of living over the past five years.
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ECON 201 DEPARTMENT OF ECONOMICS MIDTERM

EXAMINATION WINTER STUDY AHEAD SOLUTION GUIDE

CONCORDIA UNIVERSITY

Multiple Choice Questions (3 marks each).

  1. Suppose you give up a job that pays $30,000 a year in order to pursue your university education. Every year, you pay $4,000 for tuition and books, and $16,000 for food and rent. What is your opportunity cost of spending one year in university? a) $ 46,000. b) $ 50,000. c) $ 34,000. d) $ 30,000.
  2. Suppose that Zoe and Ben can produce bar soaps and DVDs. For a given day, Zoe can make either 10 soaps and 0 DVD or 0 soaps and 20 DVDs or other combinations in between. Ben can make either 5 soaps and 0 DVDs or 0 soaps and 15 DVDs or other combinations in between. Assuming that Zoe and Ben are self-sufficient and they split their day to produce both soaps and DVDs. What would be the consumption bundles for Zoe and Ben? a) Zoe consumes (5S, 20DVD) and Ben consumes (5S, 10DVD). b) Zoe consumes (10S, 10DVD) and Ben consumes (5S, 7.5DVD). c) Zoe consumes (8S, 2DVD) and Ben consumes (5S, 8DVD). d) Zoe consumes (5S, 10DVD) and Ben consumes (2.5S, 7.5DVD).
  3. A basket of goods in 2005 costs $625, while the value of the same basket in 2010 costs $800. If the base year is 2005, what is the value of this price index in 2005? a) 100. b) 78.125. c) 128. d) 155.
  4. Which of the following would be considered as cross section data? a) The mortgage payments of Anna, Ben and John between 2005 and 2010. b) The rise in the cost of living over the past five years.

c) Inflation rates between 1990 and 2010. d) The income and gasoline consumption of 1,000 residents in Montreal in 2012.

  1. If the demand equation changes from P=25-6Q to P=30-6Q, which of the following statements is CORRECT? a) The demand for this product has decreased, which is a shift to the right. b) The demand for this product has increased, which is a shift to the right. c) The demand for this product has decreased, which is a shift to the left. d) The demand for this product has increased, which is a shift to the left.

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(ii) What is the quantity and prices for consumers and producers after the subsidy? (7 marks)

(iii) Is there a deadweight loss (DWL) and how much is it? (7 marks)

  1. (20 marks) Suppose the demand curve equation is P=15-3Q.

(i) Find the arc elasticity when price drops from 9 to 6 dollars. (8 marks)

(ii) Does total expenditure/revenue increase or decrease following this price drop? (6 marks)

(iii) What is the price and quantity that will maximize total expenditure/revenue and what is the maximum expenditure/revenue? (6 marks)

  1. (30 marks) Suppose that in the market for gasoline, demand is P = 150 - Q. The private cost of producing gasoline, or supply, is P = 10 + Q. However, pollution generated by the production process creates a per unit external harm (negative externality) equal to 0.5Q. The socially responsible supply is simply P = 10 + 1.5Q.

(i) What is the private market equilibrium price and quantity if the externality is not corrected for and the socially optimal quantity? (8 marks) (ii) Suppose that the government wants to achieve the socially optimal quantity by imposing a tax on the producers. What would be the size of the tax in dollars per unit of gasoline? (7 marks)