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Equilibrium in Market Economies Fall 2022
ECON 391

Published Aug 30, 2022

Class Schedule

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Instructor & TA (Teaching Assistant) Information

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Course Description

ECON 391:

Central to the study of economics is the concept of an equilibrium in which the actions of individuals are not only individually optimal, but are also consistent with each other; such as when the total amount of a good that individuals wish to purchase equals the total amount available. This course introduces students to the notion of equilibrium for a market and market economy. The properties of such equilibria are explored, both in terms of model logic (existence, uniqueness) as well as in terms of the desirability of the equilibrium outcomes (efficiency, welfare). Partial equilibrium (in a single market) as well as general equilibrium (in all markets at once) are covered for models with endowments, production, uncertainty, and time.

Prereq: ECON 290

Detailed outline of topics. 

1 Exchange economies 

   1.1 Endowments

   1.2 Competitive equilibrium

   1.3 Application: intertemporal consumption and interest rates

2 Welfare

   2.1 Pareto efficiency

   2.2 First Welfare Theorem

   2.3 Second Welfare Theorem

   2.4 Application: taxes and inefficiency

3 Production economies

   3.1 Competitive equilibrium

   3.2 Pareto efficiency and welfare theorems

   3.3 Application: "general" vs. "partial" equilibrium

4 Markets under uncertainty

   4.1 Competitive equilibrium

   4.2 Application: insuring against aggregate and idiosyncratic risk

   4.3 Application: asset pricing

Learning Outcomes

No explicit learning outcomes defined for this course.

Tentative Course Schedule

We will work through the topics listed above. Some topics may be omitted in during the term because of time considerations. Students will be notified, in class and on LEARN, of the material they are responsible for prior to all assignments, midterms and exams. 

Texts / Materials

Title / Name Notes / Comments Required
ECON 391 Lecture Notes, by Jean Guillaume Forand These are my own notes, and they are posted on LEARN Yes

The topics from class are (almost) all covered by standard intermediate microeconomics goods (that use calculus). You may want to read through the relevant sections of some such book because (a) it can provide a different perspective on material presented in class, (b) it has more space devoted to discussions and examples, and (c) it serves as an additional source of exercises and practice problems. Here is a non-exhaustive list of such textbooks.

  • Varian, H. Intermediate Microeconomics
  • Eaton, B.C. Eaton, D.F. and D.W. Allen, Microeconomics: Theory with Applications
  • Perloff, J.M., Microeconomics: Theory and Applications with Calculus
  • Nechyba, T.J., Microeconomics: An Intuitive Approach with Calculus 

 

Student Assessment

Component Value
Assignments 10%
In-class participation questions 10%
Midterm 1 20%
Midterm 2 20%
Final exam 40%

-The aim of assignments is to help you integrate the material from class and prepare you for the exams. Teamwork is expected (and to some degree recommended), although each student must hand in their own assignments. The assignments will consist of questions drawn for the course's problem sets, available on LEARN. The exact questions covered by the assignments will be announced on LEARN at least one week before the assignment's due date. Assignments must be submitted in the relevant dropbox on LEARN. 

  • Assignment 1, due Friday September 16, 17h00
  • Assignment 2, due Friday September 30, 17h00
  • Assignment 3, due Monday October 17, 17h00
  • Assignment 4, due Friday October 28, 17h00
  • Assignment 5, due Friday November 18, 17h00
  • Assignment 6, due Friday December 2, 17h00

Each assignment will be graded on a 0-1-2 basis. I will only count your five best assignments, and your total points on these assignments will be the mark that goes into your final grade. Late assignments will not be accepted and will automatically receive grade of 0.

-In six instances during the term, I will ask an in-class participation question. Students will have 10-15 minutes to answer this question. Students will be encouraged to discuss among themselves before writing down their answers, which must be handed in at the end of that class. Each in-class participation question will be graded on a 0-1-2 basis, with students absent for that lecture getting a grade of 0. I will only count your five best participation questions, and your total points on these questions will be the mark that goes into your final grade. 

-Midterm 1 will be held in class on Tuesday October 4. The material covered by the midterm will be specified in class and on LEARN prior to the test. 

-Midterm 2 will be held in class on Tuesday November 8. The material covered by the midterm will be specified in class and on LEARN prior to the test. 

There is no makeup exams for missed midterms; their weight will be shifted to the final exam, after receipt of suitable medical justification. 

-The final exam will be held during the university's exam period. This exam is cumulative. 

Assignment Screening

No assignment screening will be used in this course.

Administrative Policy

Cross-listed courses

Please note that a cross-listed course will count in all respective averages no matter under which subject code it has been taken. For example, a PHIL/PSCI cross-list will count in a Philosophy major average, even if the course was taken under the Political Science subject code.

Economics Department Deferred Final Exam Policy

All deferred Final Exam requests for economics courses are administered by the Economics Undergraduate Office. Please consult the Deferred Exam Policy at 

https://uwaterloo.ca/economics/undergraduate/resources-and-policies/deferred-final-exam-policy.

University Policy

Academic integrity: In order to maintain a culture of academic integrity, members of the University of Waterloo community are expected to promote honesty, trust, fairness, respect and responsibility. [Check the Office of Academic Integrity for more information.]

Grievance: A student who believes that a decision affecting some aspect of their university life has been unfair or unreasonable may have grounds for initiating a grievance. Read Policy 70, Student Petitions and Grievances, Section 4. When in doubt, please be certain to contact the department’s administrative assistant who will provide further assistance.

Discipline: A student is expected to know what constitutes academic integrity to avoid committing an academic offence, and to take responsibility for their actions. [Check the Office of Academic Integrity for more information.] A student who is unsure whether an action constitutes an offence, or who needs help in learning how to avoid offences (e.g., plagiarism, cheating) or about “rules” for group work/collaboration should seek guidance from the course instructor, academic advisor, or the undergraduate associate dean. For information on categories of offences and types of penalties, students should refer to Policy 71, Student Discipline. For typical penalties, check Guidelines for the Assessment of Penalties.

Appeals: A decision made or penalty imposed under Policy 70, Student Petitions and Grievances (other than a petition) or Policy 71, Student Discipline may be appealed if there is a ground. A student who believes they have a ground for an appeal should refer to Policy 72, Student Appeals.

Note for students with disabilities: AccessAbility Services, located in Needles Hall, Room 1401, collaborates with all academic departments to arrange appropriate accommodations for students with disabilities without compromising the academic integrity of the curriculum. If you require academic accommodations to lessen the impact of your disability, please register with AccessAbility Services at the beginning of each academic term.

Turnitin.com: Text matching software (Turnitin®) may be used to screen assignments in this course. Turnitin® is used to verify that all materials and sources in assignments are documented. Students' submissions are stored on a U.S. server, therefore students must be given an alternative (e.g., scaffolded assignment or annotated bibliography), if they are concerned about their privacy and/or security. Students will be given due notice, in the first week of the term and/or at the time assignment details are provided, about arrangements and alternatives for the use of Turnitin in this course.

It is the responsibility of the student to notify the instructor if they, in the first week of term or at the time assignment details are provided, wish to submit alternate assignment.