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Baseball Primer Newsblog— The Best News Links from the Baseball Newsstand
Wednesday, October 31, 2012
Come next Tuesday night, we’ll get a resolution (let’s hope) to a great ongoing battle of 2012: not just the Presidential election between Barack Obama and Mitt Romney, but the one between the pundits trying to analyze that race with their guts and a new breed of statistics gurus trying to forecast it with data.
In Election 2012 as seen by the pundits–political journalists on the trail, commentators in cable-news studios–the campaign is a jump ball. There’s a slight lead for Mitt Romney in national polls and slight leads for Barack Obama in swing-state polls, and no good way of predicting next Tuesday’s outcome beyond flipping a coin. ...
Bonus link: Esquire - The Enemies of Nate Silver
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It would probably lead to more gun fights. The issue with Stossel's position is that pretending that a market created by natural disasters is 'normal' is incredibly asinine.
Gets a ton of gas to NJ doesn't it? It also creates an incentive for shop owners to get there stores open one way or another. Lowers demand for gas.
It would probably lead to more gun fights. The issue with Stossel's position is that pretending that a market created by natural disasters is 'normal' is incredibly asinine.
Charging $5 a gallon for a limited supply of gas is not the answer nor does putting a cap on gas create a desire for suppliers to spend money to get the gas to NJ.
Anyhow, I've heard the arguments for the free market plenty of times, I guess. I'm more curious out of morbid fascination than anything else to see if a $30 per gallon price helps anyone or anything in NJ. Not as convinced, obviously.
Gets a ton of gas to NJ doesn't it? It also creates an incentive for shop owners to get there stores open one way or another.
My heart's with Christie, but my head's with Stossel. It's hard to imagine how anyone would want to transport gas from faraway places to New Jersey if they thought they couldn't make a profit on it, especially considering that under normal circumstances New Jersey's gas prices are usually about the lowest anywhere in the East.
The issue is one of supply. Not just of gas, but of gas stations.
Another thing Stossel is saying that people are waiting in line to top off their gas. Like anyone would wait two hours to pull off that ########.
In the comments, this was linked:
Archie Bunker on racial hierarchy
The easy states to project give Obama 201, Romney 191. That leaves these as battlegrounds:
CO, FL, IA, MI, NC, NH, NV, OH, PA, VA, WI
Of those, Silver has Romney ahead in only North Carolina and Florida. Real Clear Politics agrees in every case (in verdict if not in margin) except Virginia.
Nate's count shows Obama winning 303-235 (his site projects 305-233, close enough, the difference being the relative odds of some states ending up differently than the current poll leader).
RCP would have Obama winning 290-248. Romney's chance pretty much means he needs:
1. Close Florida/Virginia poll advantages to be real and hold up
2. Win Ohio
3. Win another state that Obama leads - one of New Hampshire, Iowa, or Colorado most likely.
Or the polls to be so f***ed that they are meaningless.
I don't like expressing a once in 4 years event in percentages like that, and the idea that the outcome of that single event can be used to validate or discredit the system. But the math does work out. The odds of Romney winning are probably equivalent to the odds of Obama winning Florida, holding his poll leads in the other battlegrounds, and topping 330 electoral votes.
The issue is one of supply. Not just of gas, but of gas stations.
That's a fair point in this case, at least as it stands today.
But two related questions: Did Christie emphasize that point in his statement condemning "price gouging"? And once the gas stations' power is restored, will there still be a problem of these stations receiving a normal gas supply at "normal" wholesale prices?
A gas station that can charge more for gas can find ways to get their power on so that they can pump and sell their gas. Hell, if you could sell gas for 25 to 30 dollars a gallon you could set up a home delivery system where you go to people's homes or designated areas and pump gas out of drums or tankers. That isn't an option when you can only charge $5 a gallon.
Another thing Stossel is saying that people are waiting in line to top off their gas. Like anyone would wait two hours to pull off that ########.
I doubt people are waiting 2 hours or more to put a gallon or two in their cars but I'm also sure that people are getting in line with cars that are half full or better and I'm also sure that people with their gas guzzlers are making sure they are filled to the brim when they do go to get gas and probably fill up a few gas containers as well. Charging $5 a gallon causes people to horde because there is no disincentive not to while there is an incentive to horde.
Gouging solves this problem.
So how could the polls be systematically wrong?
There's general response bias. I'll admit that I'm unpollable - I have Caller ID and I won't pick up the phone. I suspect that that's extremely common across many segments of the population. I don't know which way it skews. It might be near neutral, but who can be sure?
There are two more specific issues with response bias. One is the issue of cell phones versus landlines. Some polls don't call cell phones at all; some do try to call cell phones (although I suspect that cell phone users are on average less likely to pick up than land line users.) So there's probably an underrepresentation of cell phone users in the sampling, and that skews younger, and skewing younger should be correlated with being an Obama supporter.
The other issue is reaching Latino voters, especially Latinos would would be more comfortable speaking Spanish. (And not just Latinos - possibly also Chinese, Korean, etc. voters who may not be entirely comfortable speaking with an English-speaking pollster even if they do speak English.) This is not equally distributed across states, and much of the Latino (and Asian) population is concentrated in safe-D states like California. But it might matter in Nevada and Florida (yes, there are a lot of non-Cuban Latinos in Florida). And if it does matter, it probably means that Obama could do better than the polls.
Then there's people being less than totally honest with pollsters. This also comes in more than one flavor.
One would be people lying about who they actually support - this is the Bradley effect, or Shy Tory effect. Frankly, I expect that there's none of it at the Presidential level, that it will be a non-issue. People are going to say who they're going to vote for. Maybe there's some rationalization built into their reasoning that obscures some factors - but they won't lie about the vote itself. If there's an issue here, it might be with the Missouri and Indiana Senate races - maybe people will be a little shy about admitting that they support Akin or Mourdock.
More important is whether people are giving misleading answers about whether they're likely to vote. I can see a lot people expressing absolute certainty about voting who wind up not doing so, and I can see people expressing hedges and uncertainties who will wind up voting. This could be sex-linked: I can see males being more likely to express certainty. A big story has been that the "likely voter" screens tend to give different results than the "registered voter" tabulations. And the likely voter screens could be off. And if they're off, Obama could do better than he polls in the LV models.
Put it all together, and where is the possible source of bias that would cause Romney to do better than he polls? The only place I see that is in the very first item: if 10% or less even answer polls, what do we really know about the other 90%? But other than that, and even there, there's no strong reason to think that it would skew for Romney. All of the other possible sources of bias would seem to either be neutral, or to potentially favor Obama.
Huh? This is the case every year. If every registered voter actually voted, Obama would win by 10 points. It's that way every year.
Re: price fixing:
So, there are arguments on both sides. The argument for allowing any price is that it increases supply. People aren't willing to move heaven and earth to get gasoline up to New Jersey for $5.00 per gallon when they make almost zero profit on gas. If you can make windfall profits, then you'll have more supply quicker. In addition, by setting the price levels higher, you disincentivize hoarding. There are almost certainly large numbers of people who are waiting in line with jerry cans who will still have gasoline in those cans when service is back to normal. In addition, Gasoline is not necessary to survival, so letting prices float freely will result in greater efficiency and a greater likelihood that someone who really does need that gasoline has quicker access to it.
The arguments against mostly boil down to free-price floating in emergencies extends the impact of emergencies on the poor. In addition, you have a greater risk for breakdown of law and order and violent riots. No one ever discusses rioting in the context of price gouging, but it's a serious concern.
Well, that still doesn't address the no incentive to get the gas to the customer that price controls create. It also increase costs for the buyer. Plus a limit simply means that people have to get in line more often for gas or have more people committed to buying gas instead of it being one person's task.
In due time . . still more than 48 hours until the polls open in Dixville Notch. However, I would highly recommend a separate prediction thread, without all the clutter that plagues this one.
Total misrepresentation of a standard pre-election "what if?" story.
This is believed to be the reason Harry Reid did much better on Election Day then polls had him doing.
If New Jersey motorists riot over the price of gasoline then the biggest problem you got going isn't the price of gasoline.
I'm not sure how $5 a gallon gas during disasters helps the poor when the poor are the least likely to be able to get the limited supply of gasoline or need it.
Absentee ballots, people! Seriously, I asked for mine, got it in the mail, then walked into the lobby of the local library to drop it off at a desk with nobody in line.
I think it's more likely than not. The polls are likely missing the enthusiasm/turnout gap, many by a substantial margin. The fundamentals are just too unfavorable for Obama.
Couple that with the fact that Obama has done nothing to explain why he deserves a second term, and Romney looking like a perfectly credible and safe alternative, I expect undecideds to break heavily for Romney, and a lot of soft Obama supporters to just stay home.
I'll say Romney 51-48, he takes OH, FL, VA, NH, CO, and one of IA or WI.
Agreed. I think that a considerable amount of the #### that Silver takes comes from people who log in for a real quick look, see Obama "winning" 83.7 to 16.3 (like this morning), and think, "son, you're high."
Agreed. I think that a considerable amount of the #### that Silver takes comes from people who log in for a real quick look, see Obama "winning" 83.7 to 16.3 (like this morning), and think, "son, you're high."
So then what is the point of his site? Should he lie? Should he say the race is 50/50 to make people happy? Should he say the race is 60/40 because people can't understand odds?
Sure the decimals are stupid but that should be a minor quibble.
You listed it in the preceding paragraph, but from the wrong angle. Many if not most of the LV screens being used in recent polls are passing as many as 96 percent of respondents through as LV. Now, this might be an accurate poll of those respondents, but, given that the 2008 turnout was only ~72 percent, it can't be representative of the electorate as a whole.
I filled up on Sunday with no waiting, and still have half a tank left in an area where 2- to 4-hour waits are common. I drive past them on my work commute each morning and night. miles and miles of cars, literally.
I think Silver's literal-mindedness is leading him to logical conclusions, but I don't believe that he or anyone else has such a strong grip on how accurate the state polls are, given these circumstances.
Also, props to him for pointing out the fact that Obama will win unless the polls are wrong. But that point seems to be lost on many: I wonder, in fact, if Nate would be a bit less shocked should they be wrong than more emotional Obama supporters would be.
I don't think it's disputable that if the state polls are right, Obama wins.
He should avoid precise percentages when talking about events that are too infrequent to estimates percentage odds reliably. It's like quantifying a teams chance of winning the World Series in percentages in April, it's stupid. Stick to toss-up, leans-O/R, likely O/R, very-likely O/R.
I don't think Obama has done a great job explaining to the nation what he will do in his second term but I think a lof of that is because the nation doesn't really want to hear the truth. Nobody wants to be told they have to make sacrifices, that their taxes will go up and they will get less services. So politicians, all politicians, have to bribe people with their own money while also telling them that the government will take less money from them. If the electorate was actually an informed electorate that was capable of understanding nuanced positions and willing to let the information come out in an orderly fashion we would all be better off. But that isn't reality and so consequently we get sound bites and vague promises.
Having said what I said about Obama I don't think that means we vote for the "other guy" simply because OBama hasn't spelled out exactly what he is going to do in the next four years. The "other guy" hasn't spelled out what he is going to do either and his base is full of nutters and he has surrounded himself with a bunch of nutters. So that isn't promising.
I respect a man who sticks by his convictions and goes all-in, even if it's not what I believe.
Because some human beings are incapable of understanding odds?
Likely this or lean that is meaningless gobblygook. What does it mean when someone says X is likely? It will happen 55% of the time? 58%? 90? What?
I said the same thing a couple of pages ago, but people think ANOTHER OT thread would be too much on the side-bar.
Of course, it is the off-season so there really isn't THAT much else to talk about for the next few days...
I haven't followed the Nate Silver saga, but what added value does he claim to bring over just looking at the polls themselves?
You don't, because you have strong ideological viewpoints. The middle 10% of the electorate doesn't have a strong ideology, or has mixed positions that cause them to waver (e.g. socially conservative union worker, or socially liberal rich suburbanite).
That type of voter will tend to "throw the bum out" if the fundamentals are poor, and the incumbent hasn't made a strong case for his re-election.
I filled up on Sunday with no waiting, and still have half a tank left in an area where 2- to 4-hour waits are common. I drive past them on my work commute each morning and night. miles and miles of cars, literally.
And again if a gas owner could charge X amount in order to make a profit he would have incentive to get his pumps working. As of right now it would cost more for a gas owner to pump gas than to sit idle and sell nothing. So the gas owner sits idle.
So if Nate is right, it shows the genius of his model. But if Nate is wrong, it's because he was provided with faulty polling data. I have to give him credit: That's a hell of a racket he's crafted.
Earlier in the year he uses other factors besides just the polls to come up with his numbers while closer to the election it becomes more and more about the polls. By using state polls, nationals polls, and weighting them theoretically he can make them more accurate.
Think of it like sabermetrics. Palmer's linear weights might explain 93% of run scoring and BaseRuns can explain 95% of run scoring. It is pretty much the same thing with Nate and aggregators.
Likely this or lean that is meaningless gobblygook. What does it mean when someone says X is likely? It will happen 55% of the time? 58%? 90? What?
No. Because nobody knows the odds. We have no idea about the relationship between registered voters, likely voters, turnout by R/D/I because they are constantly changing (especially with cell-phone/voice-mail/call screening), and we can't measure enthusiasm well, b/c everyone tells the pollsters they plan to vote.
If MLB played 16 games a year, like football, a ZiPs type forceast would be assinine. We would literally have zero idea based on the stats who was good and who was bad.
"As of right now it would cost more for a gas owner to pump gas than to sit idle and sell nothing. So the gas owner sits idle."
interesting.
can you provide a link? (apologies if you have already done so upthread and I missed it)
Just beat my comment. It's sabermetrics with a 10-game season; a woefully inadequate observation sample.
Well, not just Nate would be wrong.
RCP would be wrong.
Princeton election guys would be wrong.
All of the polls he used would be wrong.
That type of voter will tend to "throw the bum out" if the fundamentals are poor, and the incumbent hasn't made a strong case for his re-election.
They don't because the middle 10% are a bunch of morons. Again, if we had a patient and educated electorate almost all of the stupidity of the election season would go away.
interesting.
can you provide a link? (apologies if you have already done so upthread and I missed it)
Not my quote, but I have heard "talking-heads" on TV discussing the fact that for a gas station owner to bring in generators to get open would cost a lot, both in the generator rental, and the gasoline to power the generators.
Except, it's not 10 games. It's hundreds of thousands of random games.
It doesn't work like that, the pollers process their numbers to account for biases in the raw data. If any fudge factor they're using is wrong it could swing towards either side.
Exactly right. If we flip a coin, the odds of getting "heads" are 50-50, for reasons we all understand. But for Nate's odds to be correct down to the tenth of a percentage point (or ten-thousandths of a point, as he posted to Twitter last night), he needs to be absolutely right about a long list of assumptions about all sorts of things of which he can't possibly have irrefutable data, knowledge, or foresight.
The important question is: "Would the station owner gouge himself for the gas to power those generators?"
;)
There's knowing, and there's knowing. The odds Silver is projecting are based on a transparent and rigorous methodology. He has invested vastly more time and energy and knowledge on this question than the rest of us here combined.
But go ahead, pretend otherwise.
I'm not sure if the National Polls do a better job addressing the non-responders. Perhaps their methodology is better at replacing non-responders with similarly situated voters rather than the next random phone number? Or perhaps there is less resistance to the long-established, well known pollsters like Gallup? Is Rasmussn's supposed tilt to the GOP so commonly known that GOP leaning voters are more likely to respond? Or does its use of automated technology make it more likely to get a response from those who don't want to chat with strangers about their political preferences? Do polls by organizations with a well-known ideology (e.g. Washington Post, New York Times) get more non-responses from those opposed to that ideology? There are a lot of things we don't know about polling that could make a difference in a close election, and "poll bias" includes a lot of things other than pollsters manipulating their results.
This is why we have a thing called "government."
What is the historical evidence for this? Relative to polling data that is. 1980? Reagan overperformed his polling, but there was a relative dearth of published polling data back then, especially at the state level. Also seems to me that there actually may have been a lot of high quality state level polling data back then that was not available to the news media or the general public, and was possibly quite accurate if anecdotal accounts are to be believed. Pat Caddell supposedly told Carter it was over with more than a week to go.
can you provide a link? (apologies if you have already done so upthread and I missed it)
A closed gas station with no power for pumps would have to either bring in equipment that can generate power (thus guzzling gas) or run lines to areas that do have power or buy equipment that can pump gas via non electric means. All of that costs an incredible amount of money per gallon and gas station owners are already operating under razor thin margins. They simply cannot absorb those costs and make money. They have to increase their prices but they cannot because they'd get hammered by the government.
And now you see why the founders wanted to limit gov't power so much. They knew that a huge chunk of the population is not educated, or patient. Rather, they are self-interested, venal, lazy and tribal.
I'd settle for patient and educated candidates.
It's a good thing they get to have guns!
I don't just see it now. I've been for limited government for a very long time.
We don't have the data. The issue is, the number of incumbent Presidents who have run for re-election in poor economies is not large enough to make a statistical case. Elections like Carter-Reagan, and Bush-Clinton show the phenomenon.
You're trying to force "sabermetrics" into a situation where you don't have enough data, and should rely on "scouting" instead.
I think I sort of half agree with this criticism. There's not really all that much to the model beyond the basic concept of aggregating all the available polling data. If the data is crap, the model can't fix it. So if Nate is right, it mostly means that the polls were right, and not all that much more than that.
Hey, you don't forfeit your natural rights by being a jackass.
Yes, but we have to let Republicans vote anyways.
It's the truth, though. If Romney wins, it will be because of systemic and wide-spread inaccuracies with polling data to an extent not seen since the Dewey/Truman election. If Nate was 100% confident of polling data, then his estimate of the election would look more like Sam Wang's.
***
Also, I think it was funny that Szymborski was randomly accusing people of having sock puppets (I do not have multiple accounts, for the record). Does he care to acknowledge the "He's bought a bat like Prince Fielder" sock puppet?
How could it be representative of LV as a whole? If a pollster talks to 1,000 RV and then passes 960 of them through as LV, then the pollster is either projecting 96 percent turnout or substantially over-counting voters for one party or the other.
First, I'm not trying to do anything. Second, the scouts are mostly either overtly partisan or vested in a "too close to call" narrative. So you're basically saying that there's really nothing to rely on.
You're trying to force "sabermetrics" into a situation where you don't have enough data, and should rely on "scouting" instead.
Not having the precedent is why it is possible the polls can be wrong but that doesn't mean one cannot come up with a probability based on the polling numbers.
Right now it seems like you're advocating we can't do linear weights because we don't know what happened in the 1874 season despite the fact that we have millions and millions of other data points to use. The applies to this election. We have hundreds of thousands of data points. We can't simply toss those aside because we are in unfamiliar territory or because we think are in unfamiliar territory.
I think you have to separate the "power" of the politicians, from the "power" of the government. Lots of gov't power resides elsewhere than the elected representatives. The Federal agencies, and programs on "auto-pilot" may well have more actual "power" than Congress.
No politician wants less personal political power, but they may well want the gov't as a whole to have less influence over the nation.
If it means they get power or get to maintain it. Furthermore by lessening power elsewhere he/they are in fact gaining power for themselves. Think of Hoover or McCarthyism as examples of this. If you can take away power then that means you gain power because of that ability. A party with power will never intentionally decrease their power, ever. It just won't happen.
That's not true. Given an electorate so closely split, deviations in R/D/I turnout of 2-3% from the poll models in one or two states can swing the whole election.
That's not a systematic failure. It's just the inherent margin of error b/c we can't know who's going to actually bother to vote.
First, I'm not trying to do anything. Second, the scouts are mostly either overtly partisan or vested in a "too close to call" narrative. So you're basically saying that there's really nothing to rely on.
When the race is this close? Correct.
As if a, there are generators lying around unused big enough to power a gas station to be rented, b, that there is a way to convert a gas station to run on Generator rather than city power fairly quickly, and c, that there is a way to get said generator to the site before normal power is resumed. This is really why you shouldn't listen to talking-heads. Do people think there a bunch Jim's Jiant Jenerator Rental franchises somewhere in Jersey? Christ.
Guns are "natural" but voting isn't?
I've seen MCoA make this claim, too, but it's simply not true. Right now, RCP has Obama winning at the state level 290-248. If Romney wins, that means the polling will have been off in as few as two states (Ohio plus New Hampshire or Ohio plus Colorado). That's hardly a "systemic and widespread" breakdown in polling. Frankly, it's a narrow enough breakdown that a supposedly sophisticated model should be able to overcome it, especially if the model is using all sorts of non-poll data such as economic indicators, historical voting trends, etc., etc.
Romney winning Ohio + IA or WI would be a systematic failure in polling.
Pardon? We've had <25 Presidential elections since nationwide polling was even attempted.
Self-defense is a natural right, democracy isn't. But, I've never advocated limiting the franchise more than it currently is.
Which would make it true not untrue. Many, many, many polls are saying one thing. If the electorate swings 2-3% in several states to swing the election that means that all of those polls missed what was really going on. Thus aggregator sites and Nate's model will be off and it will be off because the polls dropped the ball.
If the polls are wrong or badly off then the models/aggregators will be wrong/badly off. If the polls are right or largely correct then the models will work.
If all of the errors go in one direction then this simply isn't a matter of being within the margin of error. That isn't how it works.
People have often used this as a rationale for more government too.
Yes it possible to do it quickly. All it really requires is money and if you can't charge more then you don't have the money to do it.
Does that mean every single gas station could do it? Of course not. If they were all capable of doing it it would crash the gas market and cause them all to take a huge loss but more gas stations could get back online more quickly if you allowed them to charge market price for gas.
No, it would just mean more R's & I's, and fewer D's showed up than they estimated.
These polls all report margins of error of 3-5 pts. Do you just ignore that? A 48-47 poll is a coin flip.
To repeat, there's no way to tell who's actually going to show up on Tues.
If Nate's model is so sophisticated, it should know that an LV screen that passes 96 percent of respondents through is probably unreliable as a data point.
Very true.
It all depends on your relative tolerance for individual failure, vs. collective failure.
As I said before at this point in the game anyone who is picking up the phone to answer a poll is going to vote or has already voted thus the high % of LV per poll is meaningless. Nor does it mean the polls aren't accurate because only 60% of eligible voters actually do vote. An accurate poll doesn't need to have 60% LV screen to be accurate in fact the screen % is meaningless. Get your 1500 to 2000 people who do say they will vote and you'll get numners you can work with. It doesn't matter if you have to ask 2010 people to get 2000 LV or 5000 people to get that 2000.
Why do you need to have a large amount of people who say they aren't going to vote in your poll to get an accurate poll? It's an absurd statement and only people who want to knock a poll because they don't like what it says would use such a stupid argument.
Where's the evidence for that?
Sure, I know Obama is going to win, I agree with Silver there. But if you believe that you can put the chance of Obama winning at 83.7%, and believe it means something, you deserve to get beaten up in a dark ally by Nassim N. Taleb.
Incorrect. If you talk to 1,000 RV and 96 percent pass through as LV, then you might end up with an accurate poll of those 960 LV, but you're sure as hell not getting a representative sample of the entire electorate — unless, of course, you're projecting 96 percent turnout nationwide.
You don't ignore it but if every state flips 3-5 points in one direction, that seems like a systematic polling error to me. If 6 states show Obama +2 and they all come in at Romney +2, that's a fundamental problem, if the 6 states show Obama +6 in 3 of them and Romney +2 in the other 3, that seems more like a true "Margin of error" issue.
Besides , the goal is not to get a accurate poll of the entire electorate, it is to get an accurate poll of those people who are likely to vote.
ARE YOU NUTS? did you not see that mark mcgwire is going to take the hitting coach position for the dodgers!!!111!!!!??!!
also, jack keefe's post is not getting the respect it deserves.
The LV screens this late in the game. As we get closer and closer to the election people firm up on whether or not they will vote and whether or not they are going to take a poll. If you go back and look the further away from election day you get the smaller the LV % is per poll.
If you look at a lot of the polls that give you data you'll find that occasionally the pollers ask them if they were contacted by the parties recently and a good chunk of them say yes. The people still picking up the phone this late in the game are the people who are likely to vote or have voted while people who at this point in the game who are not going to vote have no incentive to take the poll thus they do not take the poll.
I touched on this in #988. If 96 percent of your RV sample is passed through as LV, then the only way it's a representative sample is if you're projecting 96 percent turnout nationwide.
Sure, I know Obama is going to win, I agree with Silver there. But if you believe that you can put the chance of Obama winning at 83.7%, and believe it means something, you deserve to get beaten up in a dark ally by Nassim N. Taleb.
So if Nate said something like OBama has roughly a 75 to 85% chance of winning the election based on the polls he would deserve a pat on the back instead of deserving a beating in a back alley?
If the polls are wrong or badly off then the models/aggregators will be wrong/badly off. If the polls are right or largely correct then the models will work.
If all of the errors go in one direction then this simply isn't a matter of being within the margin of error. That isn't how it works.
Well, it's "how it works" if you think that there's some sort of a fiendish conspiracy among pollsters to tilt their polls in the same direction, even though this would result in them all looking like a bunch of jackasses after Tuesday.
Not if all or most of the polls are using the same projected R/D/I turnout.
If 5 of 7 polls show Obama winning OH by 2-3 pts., and those 5 are all using turnout assumptions based on 2008, and the actual turnout is 2-3 pts. more Republican than projection, then they'll all be wrong.
Yet, none of them "failed", they just made the wrong assumption about turnout. At the end of the day, the turnout breakdown is nothing but an educated guess. We know people lie about their intentions to vote, and if they voted last-time.
Bingo. As I said before requiring that 20 to 30% of your respondents saying they aren't voting for you to have an accurate poll is beyond stupid and is only being argued for because some people don't like what the polls are saying. What matters is what the LV will do and it doesn't matter how many non voting pollees you go through to get your n sample.
If 5 of 7 polls show Obama winning OH by 2-3 pts., and those 5 are all using turnout assumptions based on 2008, and the actual turnout is 2-3 pts. more Republican than projection, then they'll all be wrong.
Missing the turnout ratio is a systemic error and not an error on the part of aggregators.
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