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BlackChampagne -- no longer new; improvement also in question.: The science of a tournament bracket



Thursday, March 27, 2008  

The science of a tournament bracket


The annual NCAA men's basketball tournament is underway, and as always, it's getting a lot of media attention. I've not seen any games nor do I care who wins, but I find the process people go through as they fill out their brackets and engage in office and online pools amusing. Basically, it's a huge crap shoot, with 64 teams in a single elimination bracket and no one ever picks even half the games right, since you've got to pick the whole thing in advance. One high seed loses early and you picked them to go to the finals = half your bracket is ruined. No one ever picks all the upsets, or backs all the correct favorites, and while I've never filled out a tournament bracket or been involved in such a pool, I imagine the winners of such things get some small % of the games correct. 25/63, or something like that, mostly in the early rounds when the higher seeds usually win, and then by the luck of picking a few of the #1 seeds that make the final four and rack up 4 or 5 wins on their way.

I bring this absurdity up since ESPN.com has an absurd front page video interview today with some 15 y/o from Ohio; famous by dint of being the only person to get every game right so far, out of the hundreds of thousands who took the time to fill out the ESPN.com online tournament bracket. It's an amusingly idiotic interview, since the reporter woman is so earnest and respectful with her semi-worshipful questions about his selection methodology. The kid tries to play along, but it's pretty clear he can't take the whole thing too seriously. He didn't spend hundreds of hours researching this bullshit, and he doesn't really care who wins. He picked a few of the clear favorites, threw darts at random fun names for some upsets, and got really, really, lucky. This is why no one will ever pick every game right, and why exactly 1 person out of a million got even the first 2 rounds right.

What's funny about it is the reverence the ESPN reporter places on the idiotic subject, as if we could somehow learn from the kid's example, and emulate his successful research methods next year. No cable TV. Read the newspaper. Research online.

It reminds me of the stock market. Everyone who makes a living from financial markets must pretend that there's some science to it and that it reacts to logic and reason and that it can be predicted and controlled with the proper methods and tools. Clearly that's all bullshit; stocks go up and down largely at random based on irrational investor psychology, hot new things pop up and then go bankrupt just when everyone thought they were wonderful, and chaos theory reigns. No one picking stocks or investments is any more accurate than sports experts offering up their NCAA brackets, and none of those experts ever get even half the games correct. Who does? Random 15 y/o's from Ohio. Is that an investment leader you want to follow?

The one advantage of real life financial gambling is that you don't have to bet on every game, so to speak. You can just back UCLA and UNC and Duke and a few other mega teams/companies and count on them to be consistently profitable, while ignoring the hot, short term, trendy picks that make huge profits until, as the ongoing high risk mortgage meltdown, they go from being the best investments on earth to worthless in a matter of months. My objection is that people in the field, aside from the occasional honest Warren Buffet types, refuse to admit this. That's no surprise; they're selling an investing service and of course they're going to say you can be sure to make money with them, or in the market in general, since they're making their money by skimming off of your money. The house wants you to keep gambling, since their profits come from your action, whether you win or lose.

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Comments:

As someone who invests in the stock-market, i totally disagree with your 'random' remarks...


 

Well of course you do. Almost everyone who invests does, or they wouldn't do it. I've been a busy investor my whole life, income permitting. But I don't kid myself that it's predictable or winnable, or that logical investing will necessarily pay off. Much recent economic theory has focused on the irrational behavior of mobs, and how that can be applied to investing, where the valuations put on stocks are far more about perceptions than reality.

Two years ago, everyone was positive that the best investment ever was bundling subprime mortgages, and fortunes were made on them. And now they're all collapsing and threatening to take down much of the US/world economy with them.

Investing isn't a zero sum game, like sports betting, since in times of good economy almost everyone can win, and most people do improve their stake over the long term (this is not globally true, but has been for the US since the 1940s). But individual companies, or industries, are not much short of random on the short and medium term. My dad perpetually rages about some stock he's got a lot of and how they had a great earnings report and how it went down 8 points since some analyst's Ouija board prediction was 1% higher than the actual earnings, thus sparking a selling panic. That's not exactly "random" but it's far from logical or reasonable or predictable, other than in an "unpredictably predictable" sort of way.


 

Still disagree with you. It is just too much of a generalisation to say that these things are random, when talking about the stock market.

Granted, there is a lot of volatility at the moment, due to the continuing global credit meltdown, however there are some fundamentals of investing in companies that are not random.

Share price will typically reflect the earnings per share of that company, with certain risk factors factored in. Who cares if the shares for A large company drop all the way down to 1 cent per share (eg from $100 p/s). If the company continues to earn money then the dividend payouts will remain at the same level.

The key to my argument here is the word 'risk' and understanding that risk based on company and market research. Would I have bought Bear Stearns stocks in a financial crisis? Hells no. I steer clear of all financial stocks at the moment, and all companies that have debt.

I think it is perhaps easy for you to bundle the idea of 'investing' into a large generalised comment, however there are too many variables for that to be justified in my opinion. I do not see the similarity with getting a sub-prime mortgage and buying a share(s) in a good company that has a strong market position (unless you used margin lending to get the share, then you're begging for trouble).

I'm not usually so bitey about this kind of thing, but I do believe you should get a better understanding of these things before you comment.

And if you think investing is 'random' then perhaps, as a generic example, you could have a look at what Warren Buffet has achieved, and why Berkshire Hathaway is what it is.


 

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