Chapter 9 Video Podcasts and Lecture Notes

Reading Assignment Video Lecture Notes
9.2 Majority Rule and
Condorcet's Method
pages 328 - 332
Section 9.2
Section 9.2
Lecture notes
9.3 Other Voting Systems for
Three or More Candidates
pages 332 - 342
Section 9.3
Section 9.3
Lecture notes
9.4 Insurmountable Difficulties:
Arrow's Impossibility Theorem
pages 342 - 346
Section 9.4
Section 9.4
Lecture notes

Quiz 4 Chapter 9 (Sakai-> Tests & Quizzes)

  • The quiz for Chapter 9 will only be available from 12:00am Oct. 19 - 11:55pm Nov. 1.
  • The quiz will consist of 10 multiple choice questions.
  • You will have a maximum of two hours to complete the quiz.
  • You will be allow two tries. The computer will only accept the last score. If you are happy with your score on the first try, do not try again. I cannot change your grade back.
  • Failure to take a quiz in the given time slot will be given a zero. No exceptions!

Homework Assignments (Sakai-> Assignments)

  • Chapter 9
    pages 350-352 Problems 2, 9, 10, 14, 16
    Due by 11:55 pm Friday Nov. 1. Use the Assignments tool to submit homework.
  • I will grade and return the homework within two days. I suggest doing the homework and wait for it to be graded before attempting the Quiz.
  • I am only collecting the even problems. Do a similar odd problem and all of the Skill Check problems to make sure you understand the concepts. The answers to the odd problems and the Skill Check problems are in the back of the book!!
  • I will NOT accept homework with answers only.

Companion Website

  • Go to the companion website and navigate to the applet exercises for chapter 9 and try the applet Insincere Voting.
  • In the companion website navigate to Online Quizzes and try the online quiz.

Discussion Topic (Sakai-> Forums)

  • Probably, very few of (if any) of you have been exposed to different methods for determining a winner of an election or fairness criteria. So it would be very helpful for you to read the chapter before trying to respond. The first topic, for example, has nothing to do with the national popular vote, nor the Supreme Court, nor the Electoral college, nor ballot chads, nor counting irregularities nor misrepresentation of minorities. I hope several of you give #1 a go. It is probably the most interesting.
    • Topic #1: In the 2000 presidential election in Florida, the final results were as follows: (See table of candidates given on page 355 and is also attached here as pdf) Making reasonable assumptions about voters' preference schedules, discuss how the election might have turned out under the different voting methods discussed in this chapter. Optionally, experiment with the preference list in example 1 on page 288 using a different voting method. This may help you understand the actual Florida election.
    • Topic #2: Explain why the Borda count method satisfies the monotonicity criterion. An example will not work here. What you need to say here is why the Borda count always satisfies the monotonicity fairness criterion for every possible preference list and every possible election. Can you find another method from the the text that satisfy the monotonicity criterion? Why or why not?
    • Topic #3: Explain why the Hare method always satisfies the Pareto fairness criterion. Remember, an example cannot show why something is true. We need some valid reasoning here as well. Can you find another method from the the text that satisfy the Pareto criterion? Why or why not?
  • Discussion for Chapter 9 will open at 12:00 am Saturday Oct. 18.
  • You are required to participate in the discussion boards.
  • Discussion topic will end at 11:55 pm Friday Nov. 1.
  • See the syllabus on the grading rubric for discussions.

James Baglama

Texting hours 9am - 8pm
(401) 268-7160
Office hour:
By appointment only

For All Practical Purposes

The required textbook, "For All Practical Purposes", 9th edition by COMAP, Publisher W.H. Freeman. Do NOT use an older edition. All students must have either a phyiscal copy of the textbook or an ebook.Click on the textbook above to go to the ebook.

For All Practical Purposes Campanion Site

The required textbook, The textbook "For All Practical Purposes", 9th edition by COMAP,Publisher W.H. Freeman has a campanion website. The campanion website contains a lot helpful material,e.g. Java Applets, falshcards, practice quizzes. The site can be accessed via the link Campanion or click on the picture above to go to the campanion website.