Game Theory (econ 414)
Problem Set 1: Modelling Games and Eliminating the Impossible
Relevant reading: Harrington chapters 1-3 and lectures 1-5.
Due date: Feb 12th.
Instructions (read these carefully before starting):
Write your name (last name, …rst name) and page number on the top right corner of each
page.
DO NOT use the question sheet to answer your questions. Use a di¤erent side page for
each question and if there is a simple answer to the question then write it clearly at the
very start of every question (e.g. circle or highlight it). Make sure you then show all your
work to get full credit.
You can discuss the questions with your classmates but you must write and hand in your
own answers.
Types of questions and grading
– There are two sets of questions: graded and suggested. Try all exercises but turn in
only the ones for grading.
– I will select two questions at random and grade them out of 10 points. If you have
made a good e¤ort at answering the remaining 4 (graded) questions you will receive
an additional 10 points.
Questions (graded)
1. Harrington, chapter 2, question 5 (page 50)
2. Harrington, chapter 2, question 6 (page 50)
3. Harrington, chapter 2, question 10 (page 52)
4. Harrington, chapter 3, question 4 (page 80)
5. Harrington, chapter 3, question 8 (page 81)
6. Harrington, chapter 3, question 9 (page 82)
1
Questions (suggested)
1. Harrington CYU 2.1 (page 26)
2. Harrington CYU 2.4 (page 43)
3. Harrington, chapter 2, question 8 (page 51)
4. Harrington CYU 3.1 (page 67)
5. Harrington CYU 3.2 (page 73)
6. Harrington CYU 3.3 (page 78)
7. Harrington, chapter 3, question 2 (page 80)
2