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  • May 21 2017 10:33

    drvinceknight on gh-pages

    Fix typo. (compare)

  • May 21 2017 10:29

    drvinceknight on gh-pages

    Fix typo. (compare)

  • May 20 2017 17:49

    drvinceknight on gh-pages

    Correct typo on Ch 18. (compare)

  • May 20 2017 17:43

    drvinceknight on gh-pages

    Fix errors in CH17. (compare)

  • May 18 2017 10:58

    drvinceknight on gh-pages

    Fix typo in proof. (compare)

  • May 17 2017 18:23

    drvinceknight on gh-pages

    Correct typo in solutions to hw. (compare)

  • May 17 2017 17:59

    drvinceknight on gh-pages

    Correct feasible flow def heade… (compare)

  • May 16 2017 10:32

    drvinceknight on gh-pages

    Fix a typo in hw 2 sol Merge branch 'gh-pages' of gith… (compare)

  • May 08 2017 14:20

    drvinceknight on gh-pages

    s to c Merge pull request #2 from timo… (compare)

  • May 08 2017 14:20
    drvinceknight closed #2
  • May 08 2017 14:20
    drvinceknight commented #2
  • May 08 2017 14:19

    drvinceknight on gh-pages

    Typo normal to extensive. Merge pull request #3 from Niko… (compare)

  • May 08 2017 14:19
    drvinceknight closed #3
  • May 08 2017 12:28
    Nikoleta-v3 opened #3
  • Apr 25 2017 13:46

    drvinceknight on gh-pages

    Fix typo in Ch 11. (compare)

  • Apr 04 2017 08:45

    drvinceknight on gh-pages

    Clarify sentence in HW5q2 solut… (compare)

  • Mar 22 2017 07:39

    drvinceknight on gh-pages

    Add clarification about super a… (compare)

  • Feb 26 2017 19:48

    drvinceknight on gh-pages

    Fix another typo in def of mixe… (compare)

  • Feb 16 2017 16:41

    drvinceknight on gh-pages

    Correct solutions. (compare)

  • Feb 16 2017 14:44

    drvinceknight on gh-pages

    Syntax fix to lesson plans. Add feedback feedback for 2016-… (compare)

Vince Knight
@drvinceknight
Yup it doesn't matter @Huaraz2, as long as you state the ordering you're going to use :)
Adam Pohl
@Huaraz2
cool thanks @drvinceknight
Also what do you mean by interpretations of the utilities is this not the same as explaining the strategy sets? :confused:
Adam Pohl
@Huaraz2
do you want us to write out the tri-matrix for the interpretations of the utilities?
Vince Knight
@drvinceknight
Interpretation is just what do the utilities mean.
The strategy sets are just “what each player can do”.
So you need to define the strategies, then define the utilities (which could be done by just writing the tri-matrix) and then I’m asking you to explain what the utilities mean.
If I get a utility of 5 and you get a utility of 3 what does that mean? How do we intepret that.
So in the case of Rock Paper Scissors: if you choose Rock and I choose scissors, we’ll go with you getting a utility of 1 and me a utility of -1.
The intepretation of that is that you win and I lose, a score of 1 represents winning and a score of -1 inteprets losing.
Adam Pohl
@Huaraz2
Ok thanks Vince :smiling_imp:
Vince Knight
@drvinceknight
Now in this particular game we’re not necessarily talking about winning/losing but you need to explain what it is that you choose for your utilities.
:shipit:
Vince Knight
@drvinceknight
Here’s a blog post with an overview of the Rock Paper Scissors Lizard Spock tournament: http://vknight.org/unpeudemath/pedagogy/2016/02/15/rock-paper-scissors-lizard-spock-2016/
Vince Knight
@drvinceknight
Adam Pohl
@Huaraz2
Photos won't load Vince
Vince Knight
@drvinceknight
Thanks @Huaraz2, will fix ASAP!
Vince Knight
@drvinceknight
Fixed now. Thanks for letting me know.
Adam Pohl
@Huaraz2
Yes it all works
Adam Pohl
@Huaraz2
@drvinceknight by the def of an undominated stratergy set, UDi={sSis is not strictly dominated}UD_i=\{s\in S_i\;|\; \text{s is not strictly dominated}\} does this mean that if we have a normal form game where some of the stratergies by a player are weakly domminated that we still have to included them in the UDiUD_i stratergy set or do we just put in the stratergies that are not dominated at all?
Vince Knight
@drvinceknight
I might be misunderstanding the question but UDiUD_i is only the strategies that are not stricly dominated.
If a strategy is weakly dominated then it is not strictly dominated.
Let me know if that doesn’t answer your question :)
Adam Pohl
@Huaraz2
That answers it, I am working out the stratergy sets for the players in Q1 of the first homework and I was not sure if I included the stratergies of that were weakly dominated or not, also for that question, do we need to do the stratergy set for the player that we are keeping constant (ie always picks fb as their social network?) if so what is it?
Vince Knight
@drvinceknight
HW1Q1 is not asking you to do anything to do with dominance right?
This is a question that’s asking you to write down a representation of a 3 player game.
Adam Pohl
@Huaraz2
yes
Vince Knight
@drvinceknight
Noone is always staying constant.
All players have three strategies.
So you’re simply asked to follow the definition of a normal form game and use that to describe the situatin.
Where it says:
A NN player normal form game consists of: ...
Hope that helps.
Adam Pohl
@Huaraz2
think so,
Vince Knight
@drvinceknight
Hi all, here’s a video showing the basics of computing Nash equilibria for 2 by 2 games.
I’m doing this as an experiment with a new tool, if it’s helpful I can actually get these out pretty easily. Let me know if they’re helpful or not.
Adam Pohl
@Huaraz2
hey @drvinceknight I am doing HW1 and I don't quite understand how you get B2B_2 for Q5. I have that that player one uses the stratergy: σ2=(x,y,1xy)\sigma_2 = (x,y,1-x-y) and the resultent payoffs are: U2(σ2,c1)=3xyU_2(\sigma_2, c_1) = 3x - y and U2(σ2,c2)=2yU_2(\sigma_2,c_2) = 2 - y. Now looking at the answers I see that you say: U2(σ2,c1)>U2(σ2,c2)U_2(\sigma_2, c_1) > U_2(\sigma_2, c_2) but I can't see how this is obvious. Any help would be great thanks
Vince Knight
@drvinceknight
I don't say that, I look for values of x and y for which it's true.
Just trying to find values for which c1 is a br and similarly c2.
Adam Pohl
@Huaraz2
@drvinceknight are you using proof by contradiction to prove the equality of payoffs theorem for |S (sigma_i)| > 1 ?
Vince Knight
@drvinceknight
Yes.
Adam Pohl
@Huaraz2
:+1:
Adam Pohl
@Huaraz2
@drvinceknight we have to do stuff wrt infinitely repeated games, will the normal form game be similar to the prisoner's dilemma?
Vince Knight
@drvinceknight
I can't say. Potentially.
Adam Pohl
@Huaraz2
So can any normal form game be set as an infinitely repeated game then but the principles of how to deal with IFGs that we learnt wrt the prisoner's' dilemma are the same?
Vince Knight
@drvinceknight
Yup.
Adam Pohl
@Huaraz2
I know this is probably a really dull question
thanks Vince