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Baseball Primer Newsblog — The Best News Links from the Baseball Newsstand Thursday, April 03, 2008THT: Tango: With the game on the line, I want …You may hear a sound, a sort of a grinding whirrrr...Tango’s Great Clutch Project is now engaged.
Repoz
Posted: April 03, 2008 at 07:46 AM | 40 comment(s)
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I'm not so sure this is actually the case across baseball, but at least it probably is among THT readers...
If I understand it correctly, it would be better explained by this. Each of the guys already has a brunette, and a blonde walks in the room. Each guy considers the blonde an "upgrade", and as such each has an incentive to try to trade up. But if every guy follows their selfish interests, almost none of them get the blonde, and each has lost their brunette, making things worse off. Because of the group dynamic, even though nobody is at an optimal point they are better off staying where they are. Hence, equilibrium.
Even that example is wrong, because it assumes that a blonde is an upgrade on a brunette. But that's another story.
EDIT: And I still think I have it wrong. The Nash thing, not the brunette thing.
To put it simply, it's a situation where nobody has an alternative strategy that would improve their own payoff, each player knows it, and the players execute their moves perfectly.
They might have reached an agreement to maximize their cumulative payout, but that's not necessarily a Nash Equilibrium. The students have no reason to believe that they can't get the blonde. They do not have perfect information as to the desires of the blonde. They do not have perfect ability to prevent others from executing a strategy to get the blonde (after all, we know for a fact that pretty women do hook up with men, so we know the proper strategies exist).
In fact, the movie in history that probably best demonstrates a Nash Equilibrium is Wargames.
If I remember it correctly a Nash equilibrium is when each party is (a) at a point that is suboptimal for the group, but (b) has no incentive to change their own strategy when they consider others' strategies. Think of the Prisoner's Dilemma - the best option for both prisoners is to remain true to each other, but if I'm one of the prisoners my best option is to betray the other prisoner regardless of what he does.
So maybe I do have it right above. Anyone going for the blonde will lose the brunette they already have, and might not get the blonde; each is better off staying where they are, even though as a group they could do better.
Again, that's not the same thing. A Nash Equilibrium is not simply best cumulative result. One of them can get the blonde without another one losing a brunette, it's not a zero-sum game. Also, Nash Equilibria describe non-cooperative games. That alone makes the scene not work; they were cooperating on a strategy to maximize their cumulative payoff.
Going back to WarGames, Global Thermonuclear War in that world, was a Nash Equilibrium as presented by Joshua. Neither the Americans nor Soviets in the simulations could improve their strategy as Joshua had perfect knowledge of everything within its scenarios.
I don't know what it is about Yadier (and no it's not the Mets homerun, but to be honest not many Cardinal fans were that surprised, Yadier performing in the clutch is almost assumed even before that homer) This is a guy who really does seem like he performs better relative to his established level, and it seems to be an actual skill. Of course as he improves his everyday bat, I doubt the difference will be as pronounced. I still would prefer Ludwick, or Ankiel over Yadier in the clutch, Duncan on the other hand I can take or leave, I like him as a player and feel he's underrated around these parts, but clutch isn't really something I would attribute to him.
It's not a Nash Equilibrium; it's a cartel. A Nash Equilibrium occurs in non-cooperative situations.
In fact, the movie in history that probably best demonstrates a Nash Equilibrium is Wargames.
Probably so, and most simply demonstrated.
Exactly. Are we actually disagreeing? I'm so confused now.
Make her a redhead and it's all good, then.
It is close though. A PD that more approximates real life is an iterative PD, wherein the participants can punish participants for defecting. Cooperation would then becomea possible perfect Nash equilibrium for the subgame.
This is somewhat important b/c much of saberista research is not based on dynamic, iterative models. The behavior, and the Perfect Plan, is far more rationale when looking at iterations. The best examples being roster construction and pitcher utilization.
Fantasy and rotisserie style gaming removes a lot of the effect of the iterative concerns of the game. Certain segments of the saberstuff is constructed for fantasy gaming rather than actual baseball. That is how we end up with things like DIPS and why using WARP can lead to a warped view of the game.
Not true. A Nash equilibrum is not defined by non-cooperation; it is defined by the lack of agreement by the participants on the measured utility.
Player A can choose to cooperate with Player B;
Player B can choose to defect;
and you can still have a Nash equilibrum.
Harem behavior is often a Nash equilibrum depending on the economics and sociology of that soceity.
Except in the example, that would be hard to do. For instance, one guy could get a head start on the blonde or wait and try to land her later once others have settled for the brunettes. There's a lot of intransitivity here too - Russell Crowe trying to pick up the blonde with a cheesy pickup line could very well have a differing result than Adam Goldberg trying.
Some solutions in a non-cooperative game will resemble those in a cooperative game, but that's not the same thing. You're mashing Nash and von Neumann-Morgenstern together.
This is what I get for a throwaway comment!
True.
For instance, one guy could get a head start on the blonde or wait and try to land her later once others have settled for the brunettes.
Yep. Lots of strategies. Some may use the Hilary strategy of putting down the other guys in hopes that it would build them up.
Well, we all know Hillary ain't finding an optimal strategy!
In the prisoners dilemma, Hillary would probably whine to the cop that the other detainee was shooting at her.
How did we go from my saying "suboptimal for the group" to you interpreting my comment as saying "best cumulative result"?
Exactly. Are we actually disagreeing? I'm so confused now.
Oh, that's how. ;-)
Player A can choose to cooperate with Player B;
Player B can choose to defect;
and you can still have a Nash equilibrum.
But that's non-cooperation.
There's a lot of intransitivity here too - Russell Crowe trying to pick up the blonde with a cheesy pickup line could very well have a differing result than Adam Goldberg trying.
I posit Crowe Equilibrium: each participant will keep their current strategy because Russell Crowe is involved, and he'll win.
That would be like Rhoda joining The Outsiders (of course then we have the Monty Hall problem).
Nash titled his paper, "Non-cooperative games." but this is not what it strictly means. A subset of players may cooperate with another set of players who defect, and that may still define the Nash equilibrum.
Tango started it!
One thing about Tangos thing is that he is still crediting walks more valuable than observers will credit walks, when someone thinks of clutch they really think of the ability to do the work on their own. Tangos right of course, but if he was asking who was the better clutch player many people are thinking "who do I want up to the plate with two outs and go ahead run on second" or something to that effect. Not "who do I want to turn two outs man on second to two outs man on first and second"
This is an excellent point, and worthy of refocusing the thread to the original topic. This whole thing as it's currently laid out will be measured based on Tango's definition of clutch, even though the Fans' picks might not have been made with that definition in mind.
Thankfully, on the Fangraphs page they are using all the typical stats.
In this situation, the situation in the movie is clearly not a Nash equilibrium since, holding everyone elses choice fixed, one guy could defect and hook up with the blonde. In fact, there is only one pure strategy Nash equilibrium, and it is non-symmetric: have exactly one guy get the blonde, and the other three get a brunnette! Personally, I think it would have been great if, in the movie, Crowe had suggested this solution. There is also, I believe a symmetric mixed strategy, but my game theory is far too rusty to derive it, and in any case it would depend on the specific utilities you assign to each of the outcomes.
He's like the Derek Jeter of math.
That actually would've been an awesome scene. After all the positing, Crowe waits for the others to get their brunettes, scores with the blonde and proclaims "Ha! Convincing you guys the optimal strategy was the non-optimal payout was actually my optimal strategy."
I'll be tickled pink if the Fans win this one. In the Encarnacion v Dunn, I was definitely happy.
***
kevin/7: I was focusing on the 3 months of her life where Lohan came-of-age, but prior to her overindulgences.
You do realize that a pitcher's peripherals are a better predictor of his future performance than ERA, right?
LOL. You do realize that:
(1) Preventing hits on balls in play is a necessary skill;
(2) DIPS doesn't project peripheals; it aggregates them in a haphazard, ever evolving way. In fact, it tries to predict ERA for rotisserie leagues that use a pre-selected population of pitchers; and
(3) People looked at pitchers K rates, walk rates and home run rates LONG before we had something called DIPS.
kevin/7: I was focusing on the 3 months of her life where Lohan came-of-age, but prior to her overindulgences.
A high peak guy.
I'll be tickled pink if the Fans win this one.
Me too. Its a great project btw.
After all the positing, Crowe waits for the others to get their brunettes, scores with the blonde and proclaims "Ha! Convincing you guys the optimal strategy was the non-optimal payout was actually my optimal strategy."
It would have even been better if he said, "Busted!"
There is also, I believe a symmetric mixed strategy,
If that strategy involves inviting the blond to a Green Day concert, we would call it "Moneyball"
No offense, but I bet Neifi would out hit you in the clutch. But the ellipsis lets us all be clutch gods for a few moments.
Is this your way of saying "I don't understand linear regression and choose not to believe in it"?
This sounds like a Whig historian talking, but to most people who believe in clutch, you are clutch if you did "a good thing" in clutch situations and not clutch if you did a "bad thing". It is not quite fair for Tango to use wOBP. Maybe OBP with some considerations for DPs.
The actual results, as I said in post 31, will not be based on wOBA, or anything really. If the Fans end up with more RBIs, or higher WPA, or whatnot, and if that's how they want to measure winning, that's fine. If the Fans end up with lower RBI, OBP, SLG, wOBA, WPA, Situational Wins across the board, then, there's nothing more for the Fan to say.
I guess you've already thought of factoring in playing time. The Mets are an outlier in your selections as Marlon Anderson is used almost completely as a pinch hitter while Delgardo is the regular first baseman. Fans do seem to love catchers. (which I don't get, since fans hate double plays in clutchy situations)
I still think this is going to be a lot of fun to see. I love the fact that a lot of your studies/work involves the accuracy (or not) of the fans perception and am glad to see someone accepting some input outside of the normal numbers/scout/writers point of view.
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