Tag Archives: Sports

Football Decimation

Football is by far America’s favorite sport to watch, and has been since the 60s. Football is also far less healthy than most sports.  For example, while Italian soccer players live longer than most folks, US football players live far shorter:

While U.S. life expectancy is 77.6 years … the average for NFL players is 55, 52 for linemen.

(HT Nancy Lebovitz.) Apparently:

The average NFL player plays just 3.52 seasons and loses two to three years off his life expectancy for every season played.

If true, this is an amazingly huge health harm, especially considering how much we regulate health harms in most areas.  It is far beyond the risk we’ll allow people to take on most jobs, even soldiers or astronauts.  And it is far beyond the risk we’d let customers accept in a consumer product.

Surely we can see football hurts players – we often see them carried off in on stretchers.  But I wonder: would we accept this harm nearly as much if we saw it all up close?  Players would suffer the same average loss if each season one out of ten players just dropped dead on the playing field!  (A dead 25 year old player loses 55-25 = 30 years, which is ten times the three years life lost per player per season.)

Would we really accept such carnage before our eyes?  And why do we regulate other health harms so strictly, yet so eagerly watch this decimation?

GD Star Rating
Tagged as: ,

Sports Signals

Sports leagues are cracking down hard on athletes who look smug after making a good play.  Football:

A crackdown on excessive touchdown celebrations … has moved from the National Football League to college football and now to high school football games across the country.  In the Washington area this fall, a wide receiver from 13th-ranked McNamara was flagged for pointing to the sky after a touchdown, and a Gwynn Park defender was penalized for pointing up at the sky after intercepting a pass. … “What’s happening is in the old days, there was a certain level of celebration that was allowed. Now it’s basically no celebration,” …

There are some who view the crackdown as necessary — ridding the high school game of the scripted Sharpie-in-the-sock, cellphone-in-the-goalpost-padding type of touchdown celebrations that first appeared in the NFL a few years ago. … The cleanup of those routines earned the NFL a new nickname — the No Fun League … How far can you go before you take the joy out of the sport?…  Federation rule 9-5-1 … reads, in part: “unsportsmanlike manner … Any delayed, excessive or prolonged act by which a player attempts to focus attention upon himself.”


Under a new zero-tolerance policy approved by the NCAA, penalizing excessive celebrations will be a point of emphasis this season. The regulation has left coaches … concerned that one of their sport’s most marketable aspects — its raw emotion — is being legislated out of the game. …

According to ACC officiating supervisor John Clougherty … the crackdown on excessive celebrations is meant to deter players from showing up or embarrassing a member of the opposing team.  Among the actions Clougherty said will be closely monitored are pointing, gesturing …

“It’s definitely going to be tough for all the players, especially when somebody gets dunked on,” said Maryland guard Greivis Vasquez, who’s been known to be excitable on the court from time to time. “You going to just keep your emotions in or you going to say nothing? You just going to be like this [stone-faced]? It’s going to be hard.

Organized sports exist in large part to let athletes look good by winning, and to let fans affiliate with winners.  Athletes commonly call attention to their wins via trophies, rings, team jerseys, score boards, etc.  So how can it be offensive for players to have a little fun by calling attention to their winning plays during a game?

That last quote by Vasquez gets at the key, I think: when it is hard not to brag, not bragging is more impressive than bragging.   Since we want our athletes to be impressive, we want them not to brag.  We don’t mind athletes having fun, but not fun that makes them seem less impressive.

GD Star Rating
Tagged as: ,

Desert Errors

A story worth pondering:

In the summer of 1942 [Edward] Adolph, a physiologist at the University of Rochester in New York state, wanted to find out how people could live and work efficiently in the desert and how to get the best out of them. …

Adolph was the first to test the presumptions most people still have about what to do if forced to make any sort of effort in extreme heat. Most, he discovered, were myths. Stripping to T-shirt and shorts, for instance, is not the best way to cope with dehydrating conditions. Long sleeves and long trousers may feel hotter, but they'll slow the loss of water. Nor is there any point in rationing water when supplies are low. Putting off drinking it merely makes you unhappier sooner. "It is better," wrote Adolph, "to have the water inside you than to carry it."

The most important of Adolph's findings was the simplest: drinking during exercise improves performance. Today, we take this for granted, but generations of coaches and distance runners were taught that drinking during exercise was for wimps. …

Adolph tested the old assumptions by splitting his soldiers into two groups. Both marched through the desert for up to 8 hours during the time of year when the average afternoon high was 42°C. The soldiers in one group were allowed to drink as much water as they wanted and the others weren't allowed any. The results were clear: the drinkers outperformed the non-drinkers. …

His findings stayed secret until 1947, when he was allowed to publish his pioneering Physiology of Man in the Desert. It went almost entirely unnoticed. In the late 1960s, marathon runners were still advised not to drink during races and until 1977, runners in international competitions were banned from taking water in the first 11 kilometres and after that were allowed water only every 5 kilometres.

So not only were authorities dead wrong, but they were so confidently wrong that, in the name of helping runners, they paternalistically forced runners to do the exact worst thing!  How could authorities be so wrong for so long on something that was so easy to personally test, and with such huge consequences?  And how could they remain wrong for three decades after careful study had proved them wrong?

GD Star Rating
Tagged as:

Seek Superstar Slavery

The latest Review of Economic Studies has a great article (ungated here) by Marko Tervio.  I'll summarize.

CEOs, actors, directors, musicians, authors, and athletes make big bucks because:

  1. Desired abilities are rare and lasting.
  2. It is very expensive to try someone new.
  3. Everyone can see which trials worked or not.
  4. Winners are free to demand more money or walk.

Given these conditions, a few proven winners make big bucks, and few new folks get tried.  After all, a new trial who wins will soon demand as much as other winners.  Here winners avoid retirement to keep milking their gravy train, and small biases in weak signals on new guys to try can magnify into great social injustice. 

Condition 4 is crucial.  When long term deals are allowed, more folks are tried, because a few successes can pay for lots of failures.  Folks being tried get paid more, and there are more better winners who retire earlier and are paid less even when free to walk.  Distorted signals about who to try matter less.  Such long term deal gains were realized, for example, in the US movie studio system of the 1920-40s, the old US American baseball club system, and even now via exclusive long-term music album deals.

Over the last century, however, legislatures and courts have consistently moved to limit and prohibit such long term contracts, thereby increasing inequality and decreasing productivity.  France even forbids artists from selling the full value of their paintings.  The key tipping factor here seems to me to be a public displeased by seeing gains by admired musicians, actors, athletes, artists etc. going to less admired others.  The word "slavery" is often invoked. For example, music fans can be outraged to see their favorite musicians shackled to ungenerous album deals. 

So our vast wage inequality of superstar CEOs, artists, athletes, etc. is caused not by a lack of sensible regulation to limit random cruelties of unfettered markets, but by a public preferring its heroes unshackled, even if those heros had preferred otherwise. Now maybe insuring heroes against financial variations imposes a negative externality on wider admiring publics, one large enough to justify preventing long term deals.  But for now count me as skeptical; I'd rather allow CEO and other superhero "slavery," for their good and ours. 

GD Star Rating
Tagged as: , , , ,

Who Cheers The Referee?

Almost no one, that's who.  Oh folks may cheer a ruling favoring their side, but that is hardly the same.  On average referees mostly get complaints from all sides.   Who asks for their autograph, or wants to grow up to be one?

Similarly who cheers the officials who keep elections fair, or the teachers who grade fairly?  Inspiring stories are told of folks who win legal cases or music competitions, but what stories are told of fair neutral judges who make sure the right people win?  After all, competition stories are not nearly as inspiring with arbitrary or corrupt judges.  Oh judges are sometimes celebrated, but for supporting the "good" side, not for making a fair neutral evaluation.

Sure we give lip service to fairness, and we may sincerely believe that we care about it, but that mostly expresses itself as sincere outrage when our side is treated unfairly.  We usually can't be bothered to pay much attention to help settle disputes in which we have little stake.  So if you want to be celebrated and gain social support, take sides.  But if you want to instead do the most good for the world, consider pulling the rope sideways instead of joining the tug-o-war.  Consider being a neutral arbitrator, or better yet consider developing better systems of arbitration and evaluation.

Continue reading "Who Cheers The Referee?" »

GD Star Rating
Tagged as: , , ,

Insincere Cheers

As my son is a senior marching band drum major, Friday I went to a local high school football game to film him for posterity.  And I noticed something obvious.

People like to cheer their teams on, but prefer to be encouraged by announcers, cheerleaders, bands, pep squads, and so on.  And while fans seem to care that these various leaders of cheer are impressive and loyal, fans don’t seem to care nearly as much if these leaders sound sincere.  The announcer carefully controlled his voice inflections, the cheerleaders carefully synchronized their arm movements, and everything they said was consistently loyal, but you couldn’t possibly have mistaken them for people who deeply and sincerely believed the words they spoke.

Sport cheers are often considered an analogy to political and ideological partisanship; we like to vote and declare our opinions similar to the way we like to cheer sport teams.  We prefer to support positions that have have loyal impressive cheerleaders.  It is nice if those cheerleaders are also sincere, but it is not especially important to us.  It is, however, important that our idea cheerleaders be impressive and loyal.  We might eagerly point out when leaders on the other side sound insincere, but that is mostly hypocrisy, since we don’t care much about our leaders’ sincerity.   

Just as we care more that our team wins than that they were actually the strongest team, we probably care more that our idea sides look good than that our ideas are true.

GD Star Rating
Tagged as:

Poker Vs Chess

A computer has beaten top human poker players:

Humanity was dealt a decisive blow by a poker-playing artificial intelligence program called Polaris during the Man-Machine Poker Competition in Las Vegas.  Poker champs fought the AI system to a draw, then won in the first two of four rounds (each round had Polaris playing 500 hands against two humans, whose points were averaged.) But in the final two rounds of the match, Polaris beat both human teams, two wins out of four, with one loss and one draw. IBM’s Deep Blue beat chess champion Gary Kasparov in 1997.

This has gained very little news coverage, in stark contrast to the Chess case, even though far more people play poker than chess.  To explain both facts, note that most people can more easily see that they lack chess than poker expertiSe.  They can watch a poker expert fold or raise and imagine that they would have done the same, but know they have no idea why a chess expert makes his moves.

This fools people into thinking they could be a poker champion, which is why so many more people try at poker.  And being less impressed by existing poker champions, people are less impressed by a computer who beats those champions.  The moral: beware of underestimating computers by underestimating the difficulty of the tasks at which they excel. 

GD Star Rating
Tagged as:

More Referee Bias

Analyzing the neutrality of referees during 12 German premier league (1. Bundesliga) soccer seasons, this paper documents evidence that social forces influence agents’ decisions. Referees, who are appointed to be impartial, tend to favor the home team by systematically awarding more stoppage time in close matches in which the home team is behind. They also favor the home team in decisions to award goals and penalty kicks. Crowd composition affects the size and the direction of the bias, and the crowd’s proximity to the field is related to the quality of refereeing.

That is from Economic Inquiry

GD Star Rating
Tagged as:

Don’t Do Something

The October Journal of Economic Psychology says goalies do too much:

In soccer penalty kicks, goalkeepers choose their action before they can clearly observe the kick direction. An analysis of 286 penalty kicks in top leagues and championships worldwide shows that given the probability distribution of kick direction, the optimal strategy for goalkeepers is to stay in the goal’s center. Goalkeepers, however, almost always jump right or left. … The claim that jumping is the norm is supported by a second study, a survey conducted with 32 top professional goalkeepers. The seemingly biased decision making is particularly striking since the goalkeepers have huge incentives to make correct decisions, and it is a decision they encounter frequently. Finally, we discuss several implications of the action/omission bias for economics and management. …

The action/omission bias might affect the decision of investors whether to change their portfolio (action) or not (inaction). It can affect the choice of managers whether to leave their company’s strategy or investments unchanged (inaction), or to change them (action). The bias may also have implications for the decision of workers whether to stay in their job (inaction) or look for a better job (action), and one’s decision whether to re-locate to another city or not. In the macro-economic level, the action/omission bias may also affect decisions made by governments and central banks whether to change various policy variables (interest rates, tax rates, various types of expenditures, etc.), or leave them unchanged.

Of course if you do nothing you risk being seen as cowardly or ignorant, so it might not pay you to correct this bias.   

GD Star Rating
Tagged as:

Why I’m Betting on the Red Sox

One of the most pervasive beliefs among sports fans is a belief in "streaks".  I cannot tell you the number of times I have heard sports commentators this week tell us that the Rockies have won 21 of their last 22 games.  And this alone is the reason that I’m betting against the Rockies.

The "hot hand bias" was first documented in a fascinating paper by Tom Gilovich, Robert Vallone and Amos Tversky.  That original paper (available here) is a wonderful read, showing that the widespread belief among basketball fans of a strong "hot hand" is simply false.  That is, today’s streak doesn’t predict tomorrow’s behavior.  I love teaching this paper to my MBA students, simply because they don’t believe it.  The hot hand fallacy is a wake-up to how pervasive bias can be.  A nice example of how sports can yield very convincing teaching metaphors.

A subsequent literature has developed showing that many (most?) of the sports statistics that ESPN loves to share with us, are simply useless as inputs for forecasting the future.  It seems that our brains are a bit too willing to try to find order, even in a world where chaos reigns.  This leads me to believe that most baseball fans are a bit too optimistic that the Rockies’ streak will persist.

Some will protest that subsequent research has found evidence of streakiness in specific sports.  I agree.  But this is beside the point: it is essentially an observation about sports.  What is more relevant here (and no-one has convincingly refuted) is that sports fans tend to believe that streakiness is even stronger

Believe it or not, there is now an entire blog devoted to the hot hand and streakiness in sports – read more here.  Or if you are interested in the performance of streaky baseball teams in the post-season, read this analysis at hardballtimes.com.

(OK, there is one more reason I’m betting on the Red Sox: I went to graduate school in Beantown, and learned to love baseball at Fenway.)

GD Star Rating
Tagged as: ,