Hello. After the last class on game theory, all the participants have received an email for the recording. That email said "We will share a link to the Introduction to Game Theory framework, including access to the quizzes and final exam, in an email when the new interactive course is released."

I believe that we have not received this link yet. Will we receive the link soon? Also, if we want to solve the quizzes and pass the final exam, will we have enough time to do them?

Thank you.

Good day! I understand that the framework for the course will be available soon, but I'd like to ask if this will be before 14 April 2026. This is because my Wolfram Mathematica student trial will be expiring by then. Thank you so much! :)

Hi, Mark! I forwarded the recordings to your email address, along with the additional information we shared during those sessions. You can also access them by clicking this link, which takes you to the series' landing page. Thank you for your participation in this Study Group!

RockPaperScissors is a zero-sum simultaneous game. There are 3 outcomes: {1,-1} (the first player wins and the second loses), {0,0} (a tie) and {-1,1} (the first player loses, the second wins). Then, its a question of forming the matrix game. Consider the second player plays in order, rock, paper and scissors, consider the outcomes if player 1 chooses rock: {{0, 0}, {-1, 1}, {1, -1}}, paper: {{1, -1}, {0, 0}, {-1, 1}} and scissors: {{-1, 1}, {1, -1}, {0, 0}}. So your payoff array is {{{0, 0}, {-1, 1}, {1, -1}}, {{1, -1}, {0, 0}, {-1, 1}}, {{-1, 1}, {1, -1}, {0, 0}}}. Then, I would set up the GameActionLabels at {{"Rock","Paper","Scissors"},{"Rock","Paper","Scissors"}}, and the GamePlayerLabels, if we were to play together for example, as {"Mitchell","Marc"}.

So in total the call would be

MatrixGame[{{{0, 0}, {-1, 1}, {1, -1}}, {{1, -1}, {0, 0}, {-1, 1}}, {{-1, 1}, {1, -1}, {0, 0}}},
GameActionLabels -> {{"Rock", "Paper", "Scissors"}, {"Rock", "Paper", "Scissors"}}, 
GamePlayerLabels -> {"Mitchell", "Marc"}]

Best,
Marc Vicuna

I missed the study group session 4 due to I had another duty am I please still qualifying for the certificate ?

Hi;

Why am I not getting the actions listed in my MatrixGamePlot function - see attached notebook?

Thanks,

Mitch Sandlin

Attachments:

ThePrisonersDelimma.nb

Using "Dataset" displays the actions, but it is missing the players legend. What I am looking for is one graphic that shows all necessary information. If you are using the graphic to determine what action to take, you need the: players, actions, and payoffs to make the decision and shouldn't need to mentally combine several graphics to get the information.

Thanks,

Mitch Sandlin

Question on exercise 2 - cheating students.
Proposed solution has these payoffs:

payoffs = {{{{0, 0, 0}, {0, 0, 1}}, {{0, 1, 0}, {0, -1, -1}}}, {{{1, 
      0, 0}, {-1, 0, -1}}, {{-1, -1, 0}, {-1, -1, -1}}}};

However, since this is a zero-sum, they need to be normalized. Is there any benefit to doing so vs defining payoffs as zero-sum integers like below?

payoffs = {{{{0, 0, 0}, {-1, -1, 2}}, {{-1, 
      2, -1}, {2, -1, -1}}}, {{{2, -1, -1}, {-1, 2, -1}}, {{-1, -1, 
      2}, {0, 0, 0}}}};