ECON 222


Course Documents
By enrolling in this section, you agree to the policies outlined in the course documents.
Fall 2019 Syllabus
Details about Grading
Missing or Planning to Miss a Test or a Problem Set? and Certificate of Illness
Regrade Policy
The "Syllabus" page on Canvas has a FAQ section that you may find informative.

Lecture Slides
These slides provide a brief overview of the topics covered in this course. It is recommended that you read and THINK THROUGH them before lecture. The slides are NOT meant to be comprehensive, so you should attend lectures and complement the slides with your own notes.
Please note: Until advised that the slides have been updated, you should assume that they are from the previous semester. Dates are approximate.
Introduction (September 5)
Preferences, Utility and the Basics of Simultaneous-Move Games (September 5 and 12)
Iterated Strict Dominance (September 12 and 19)
Nash Equilibrium and More Examples of Simultaneous-Move Games (September 26 and October 3)
Evolutionarily Stable Strategy (October 3 and 10)
Games of Perfect Information and Backward Induction (October 10, 17 and 31)
Games of Perfect Information: Examples and Applications (October 31 and November 7)
Multi-Stage Games with Observed Actions and Subgame Perfection (November 7)
Repeated Games with Observed Actions (November 14 and 21)
Mixed Strategies (November 21 and 28)
Expected Utility Theory (FYI only - will not be covered/tested)

Problem Sets
Problem sets will be posted by the end of the day one week before the due date; preliminary versions may be posted earlier, but are subject to change based on progress made during lecture. They are due at the BEGINNING of lecture, can be collected at any time during lecture, and will not be accepted after the collection. Solutions are posted on Canvas on or soon after the due date.
Your TA will check your submissions for completeness only. The point is to discourage you from falling behind. It is NOT to evaluate how well you're doing, so don't assume that you're fine just because you're getting full marks on problem sets. You are responsible for actually checking what you did right and what you did wrong, and for understanding the solutions (both the details and the big picture): this is often as important as doing the problem set in the first place!
Problem Set 1 (due September 26)
Problem Set 2* (due October 17)
Problem Set 3* (due November 14)
Problem Set 4** (due November 28)
*May be helpful: Finding Strategies and Deriving the Normal Form for a Sequential Game (by Kevin Chen, past TA for ECON 302)
**May be helpful: Finding Nash Equilibria

Practice Problems
Solutions to the practice practice problems have been posted on Canvas. Note that, starting in Fall 2019, the quiz is replaced by additional MobLab questions on definitions.
Quiz: Fall 2016, Spring 2017, Spring 2019
Midterm: Preparation, Fall 2016, Spring 2017, Spring 2019, Fall 2019
Final: Preparation, Fall 2016, Spring 2017, Spring 2019 (Solutions), Fall 2019 (Solutions)
Practice Problems on Post-PS 4 Material

Game Theory Videos on Youtube (by William Spaniel)
These videos can be helpful if you have trouble taking good notes in class - remember that slides are provided as a courtesy, and should not be considered complete notes - or need the course content explained in another way. Please note that these videos do NOT cover every topic in the course, but also that the course does NOT cover every topic from them.
Game Theory 101
Disclaimer: The ECON 222 staff takes no responsibility for the content of these websites. In particular, it is the viewer's responsibility to note any mistakes or differences in definitions.