Study of N.B.A. Sees Racial Bias in Calling Fouls

faux_rillzfaux_rillz 14,343 Posts
edited May 2007 in Strut Central
Study of N.B.A. Sees Racial Bias in Calling Fouls [/b]By ALAN SCHWARZPublished: May 2, 2007An academic study of the National Basketball Association, whose playoffs continue tonight, suggests that a racial bias found in other parts of American society has existed on the basketball court as well.A coming paper by a University of Pennsylvania professor and a Cornell University graduate student says that, during the 13 seasons from 1991 through 2004, white referees called fouls at a greater rate against black players than against white players.Justin Wolfers, an assistant professor of business and public policy at the Wharton School, and Joseph Price, a Cornell graduate student in economics, found a corresponding bias in which black officials called fouls more frequently against white players, though that tendency was not as strong. They went on to claim that the different rates at which fouls are called ???is large enough that the probability of a team winning is noticeably affected by the racial composition of the refereeing crew assigned to the game.???N.B.A. Commissioner David Stern said in a telephone interview that the league saw a draft copy of the paper last year, and was moved to do its own study this March using its own database of foul calls, which specifies which official called which foul.???We think our cut at the data is more powerful, more robust, and demonstrates that there is no bias,??? Mr. Stern said.Three independent experts asked by The Times to examine the Wolfers-Price paper and materials released by the N.B.A. said they considered the Wolfers-Price argument far more sound. The N.B.A. denied a request for its underlying data, even with names of officials and players removed, because it feared that the league???s confidentiality agreement with referees could be violated if the identities were determined through box scores.The paper by Mr. Wolfers and Mr. Price has yet to undergo formal peer review before publication in an economic journal, but several prominent academic economists said it would contribute to the growing literature regarding subconscious racism in the workplace and elsewhere, such as in searches by the police.The three experts who examined the Wolfers-Price paper and the N.B.A.???s materials were Ian Ayres of Yale Law School, the author of ???Pervasive Prejudice???? and an expert in testing for how subtle racial bias, also known as implicit association, appears in interactions ranging from the setting of bail amounts to the tipping of taxi drivers; David Berri of California State University-Bakersfield, the author of ???The Wages of Wins,??? which analyzes sports issues using statistics; and Larry Katz of Harvard University, the senior editor of the Quarterly Journal of Economics. ???I would be more surprised if it didn???t exist,??? Mr. Ayres said of an implicit association bias in the N.B.A. ???There???s a growing consensus that a large proportion of racialized decisions is not driven by any conscious race discrimination, but that it is often just driven by unconscious, or subconscious, attitudes. When you force people to make snap decisions, they often can???t keep themselves from subconsciously treating blacks different than whites, men different from women.???Mr. Berri added: ???It???s not about basketball ??? it???s about what happens in the world. This is just the nature of decision-making, and when you have an evaluation team that???s so different from those being evaluated. Given that your league is mostly African-American, maybe you should have more African-American referees ??? for the same reason that you don???t want mostly white police forces in primarily black neighborhoods.???To investigate whether such bias has existed in sports, Mr. Wolfers and Mr. Price examined data from publicly available box scores. They accounted for factors like the players??? positions, playing time and All-Star status; each group???s time on the court (black players played 83 percent of minutes, while 68 percent of officials were white); calls at home games and on the road; and other relevant data. But they said they continued to find the same phenomenon: that players who were similar in all ways except skin color drew foul calls at a rate difference of up to 4 ?? percent depending on the racial composition of an N.B.A. game???s three-person referee crew.Mark Cuban, the owner of the Dallas Mavericks and a vocal critic of his league???s officiating, said in a telephone interview after reading the paper: ???We???re all human. We all have our own prejudice. That???s the point of doing statistical analysis. It bears it out in this application, as in a thousand others.???Asked if he had ever suspected any racial bias among officials before reading the study, Mr. Cuban said, ???No comment.???Two veteran players who are African-American, Mike James of the Minnesota Timberwolves and Alan Henderson of the Philadelphia 76ers, each said that they did not think black or white officials had treated them differently.???If that???s going on, then it???s something that needs to be dealt with,??? James said. ???But I???ve never seen it.???Two African-American coaches, Doc Rivers of the Boston Celtics and Maurice Cheeks of the Philadelphia 76ers, declined to comment on the paper???s claims. Rod Thorn, the president of the New Jersey Nets and formerly the N.B.A.???s executive vice president for basketball operations, said: ???I don???t believe it. I think officials get the vast majority of calls right. They don???t get them all right. The vast majority of our players are black.???Mr. Wolfers and Mr. Price spend 41 pages accounting for such population disparities and more than a dozen other complicating factors.For the 1991-92 through 2003-4 seasons, the authors analyzed every player???s box-score performance ??? minutes played, rebounds, shots made and missed, fouls and the like ??? in the context of the racial composition of the three-person crew refereeing that game. (The N.B.A. did not release its record of calls by specific officials to either Mr. Wolfers, Mr. Price or The Times, claiming it is kept for referee training purposes only.)Mr. Wolfers said that he and Mr. Price classified each N.B.A. player and referee as either black or not black by assessing photographs and speaking with an anonymous former referee, and then using that information to predict how an official would view the player. About a dozen players could reasonably be placed in either category, but Mr. Wolfers said the classification of those players did not materially change the study???s findings. During the 13-season period studied, black players played 83 percent of the minutes on the floor. With 68 percent of officials being white, three-person crews were either entirely white (30 percent of the time), had two white officials (47 percent), had two black officials (20 percent) or were entirely black (3 percent).Mr. Stern said that the race of referees had never been considered when assembling crews for games.With their database of almost 600,000 foul calls, Mr. Wolfers and Mr. Price used a common statistical technique called multivariable regression analysis, which can identify correlations between different variables. The economists accounted for a wide range of factors: that centers, who tend to draw more fouls, were disproportionately white; that veteran players and All-Stars tended to draw foul calls at different rates than rookies and non-stars; whether the players were at home or on the road, as officials can be influenced by crowd noise; particular coaches on the sidelines; the players??? assertiveness on the court, as defined by their established rates of assists, steals, turnovers and other statistics; and more s
ubtle factors like how some substitute players enter games specifically to commit fouls.Mr. Wolfers and Mr. Price examined whether otherwise similar black and white players had fouls-per-minute rates that varied with the racial makeup of the refereeing crew.???Across all of these specifications,??? they write, ???we find that black players receive around 0.12-0.20 more fouls per 48 minutes played (an increase of 2 ??-4 ?? percent) when the number of white referees officiating a game increases from zero to three.??? Mr. Wolfers and Mr. Price also report a statistically significant correlation with decreases in points, rebounds and assists, and a rise in turnovers, when players performed before primarily opposite-race officials. ???Player-performance appears to deteriorate at every margin when officiated by a larger fraction of opposite-race referees,??? they write. The paper later notes no change in free-throw percentage. ???We emphasize this result because this is the one on-court behavior that we expect to be unaffected by referee behavior.???Mr. Wolfers and Mr. Price claim that these changes are enough to affect game outcomes. Their results suggested that for each additional black starter a team had, relative to its opponent, a team???s chance of winning would decline from a theoretical 50 percent to 49 percent and so on, a concept mirrored by the game evidence: the team with the greater share of playing time by black players during those 13 years won 48.6 percent of games ??? a difference of about two victories in an 82-game season.???Basically, it suggests that if you spray-painted one of your starters white, you???d win a few more games,??? Mr. Wolfers said.The N.B.A.???s reciprocal study was conducted by the Segal Company, the actuarial consulting firm which designed the in-house data-collection system the league uses to identify patterns for referee-training purposes, to test for evidence of bias. The league???s study was less formal and detailed than an academic paper, included foul calls for only two and a half seasons (from November 2004 through January 2007), and did not consider differences among players by position, veteran status and the like. But it did have the clear advantage of specifying which of the three referees blew his whistle on each foul.The N.B.A. study reported no significant differences in how often white and black referees collectively called fouls on white and black players. Mr. Stern said he was therefore convinced ???that there???s no demonstration of any bias here ??? based upon more robust and more data that was available to us because we keep that data.???Added Joel Litvin, the league???s president for basketball operations, ???I think the analysis that we did can stand on its own, so I don???t think our view of some of the things in Wolfers???s paper and some questions we have actually matter as much as the analysis we did.???Mr. Litvin explained the N.B.A.???s refusal to release its underlying data for independent examination by saying: ???Even our teams don???t know the data we collect as to a particular referee???s call tendencies on certain types of calls. There are good reasons for this. It???s proprietary. It???s personnel data at the end of the day.??? The percentage of black officials in the N.B.A. has increased in the past several years, to 38 percent of 60 officials this season from 34 percent of 58 officials two years ago. Mr. Stern and Mr. Litvin said that the rise was coincidental because the league does not consider race in the hiring process.Mr. Wolfers and Mr. Price are scheduled to present their paper at the annual meetings of the Society of Labor Economists on Friday and the American Law and Economics Association on Sunday. They will then submit it to the National Bureau of Economic Research and for formal peer review before consideration by an economic journal.Both men cautioned that the racial discrimination they claim to have found should be interpreted in the context of bias found in other parts of American society.???There???s bias on the basketball court,??? Mr. Wolfers said, ???but less than when you???re trying to hail a cab at midnight.???Pat Borzi contributed reporting from Minneapolis and John Eligon from East Rutherford, N.J.
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  Comments


  • yuichiyuichi Urban sprawl 11,332 Posts
    This post is making me smile. I have yet to read it, and there may in fact be "racial bias in the NBA" but I'm PRETTY sure there are better ways to spend time in research and analysis than the NBA.

  • brandonbrandon 42 Posts

    ???I would be more surprised if it didn???t exist,??? Mr. Ayres said...

  • RockadelicRockadelic Out Digging 13,993 Posts
    1) The NBA has become a league who's better white players are non-American. These are the players that are getting the most playing time and include most of our white "stars"(Nash, Dirk, Gasol, etc.) vs. our best white American players(Kirk Hinrich and Mike Miller). A rule of thumb in pro basketball is that the taller, more physical players tend to foul more.....this does not describe the average white NBA player. Most of these players are considered "soft"

    2) The Foriegn or Euro game is mush less physical than American ball with more emphasis on shooting, scoring and passing and less on defense. Less defense = less fouls. Most of these players are considered "soft".

    3) The more athletic you are, the faster you move, the higher you jump, the more likely you'll commit a foul on both the offensive and defensive end. The "American" style of basketball lends itself to more fouls than the Euro style. The great majority of the American players in the NBA are black.

    Conclusion: Most of the fouls in the NBA are called on the more agressive, athletic players. This is either a logical conclusion based on styles and pure numbers or the majority of NBA Referees are flaming racists who only got into the profession to perpetuate some KKK-Like agenda.

    I'll go with the former.

  • keithvanhornkeithvanhorn 3,855 Posts

    2) The Foriegn or Euro game is mush less physical than American ball with more emphasis on shooting, scoring and passing and less on defense. Less defense = less fouls. Most of these players are considered "soft".

    3) The more athletic you are, the faster you move, the higher you jump, the more likely you'll commit a foul on both the offensive and defensive end. The "American" style of basketball lends itself to more fouls than the Euro style. The great majority of the American players in the NBA are black.

    Ok, so if white players (who are in the minority) are less physical and black players are more athletic, then wouldnt black players have a physical/athletic advantage on offense??? if so, that would mean that the slower/less physical white guys have a hard time guarding the black players.

    What do you do when your guarding a faster/stronger player? You either let him blow by you, or you FOUL HIM!!

    So the fact is that, logically, WHITE players should be FOULING more often then blacks (accepting your stereotypes). The data suggests that not only is that not the case, but that blacks are statistically much more likely to get fouls called on them.

  • RockadelicRockadelic Out Digging 13,993 Posts

    2) The Foriegn or Euro game is mush less physical than American ball with more emphasis on shooting, scoring and passing and less on defense. Less defense = less fouls. Most of these players are considered "soft".

    3) The more athletic you are, the faster you move, the higher you jump, the more likely you'll commit a foul on both the offensive and defensive end. The "American" style of basketball lends itself to more fouls than the Euro style. The great majority of the American players in the NBA are black.

    Ok, so if white players (who are in the minority) are less physical and black players are more athletic, then wouldnt black players have a physical/athletic advantage on offense??? if so, that would mean that the slower/less physical white guys have a hard time guarding the black players.

    What do you do when your guarding a faster/stronger player? You either let him blow by you, or you FOUL HIM!!

    So the fact is that, logically, WHITE players should be FOULING more often then blacks (accepting your stereotypes). The data suggests that not only is that not the case, but that blacks are statistically much more likely to get fouls called on them.

    Take Nash as an example...if you don't PLAY defense you don't foul. But he takes a damn good charge and flops alot.

    Euros tend to play "Matador" defense.

  • The_Hook_UpThe_Hook_Up 8,182 Posts
    Im sorry, but this thread and the article that inspired it is truly on some eye-rolling shit...

  • RockadelicRockadelic Out Digging 13,993 Posts
    Im sorry, but this thread and the article that inspired it is truly on some eye-rolling shit...

    I don't disagree.........people try to find racism in EVERYDAMNTHING!!

  • edulusedulus 421 Posts
    um, if you guys read the article...its not that white people get favortism. its that white officials tend to call more fouls on black people, black officials tend to call more fouls on white people. so arguments about styles of play etc. based on race is more racist than these officials.

  • mannybolonemannybolone Los Angeles, CA 15,025 Posts
    Im sorry, but this thread and the article that inspired it is truly on some eye-rolling shit...

    I don't disagree.........people try to find racism in EVERYDAMNTHING!!

    It sometimes helps to actually read an article before writing your opinion about it or the arguments being included within.

    Just saying.

  • The_Hook_UpThe_Hook_Up 8,182 Posts
    Im sorry, but this thread and the article that inspired it is truly on some eye-rolling shit...

    I don't disagree.........people try to find racism in EVERYDAMNTHING!!

    It sometimes helps to actually read an article before writing your opinion about it or the arguments being included within.

    Just saying.

    I did read the article, I just find that the fact that probably thousands and thousands of dollars and hundreds of man-hours went into a study that basically falls into the "big fuckin' deal" category...

  • ElectrodeElectrode Los Angeles 3,134 Posts
    I'm pretty sure the large sums of money that basketball players earn compensate for any hurt feelings they may encounter on the court.

  • keithvanhornkeithvanhorn 3,855 Posts
    um, if you guys read the article...its not that white people get favortism. its that white officials tend to call more fouls on black people, black officials tend to call more fouls on white people.

    all of the statistical data was about the bias of white officials. the article mentioned something about black officials having a corresponding bias, but there was no data to support that theory.


    so arguments about styles of play etc. based on race is more racist than these officials.

    you sound like someone who has never played sports, let alone basketball. watch an nba game tonite and report back as to whether there is a general difference between the style of play of white guys (who are mostly european) and black players. i have friends playing hoops in europe right now. this isnt a jimmy the greek argument, its just a fact. so if they didn't take this into account in the study, i would say (based on the argument i made in my prior post) that this point emphasizes the bias against black players.

  • faux_rillzfaux_rillz 14,343 Posts
    um, if you guys read the article...

    BAN!

  • RockadelicRockadelic Out Digging 13,993 Posts
    They went on to claim that the different rates at which fouls are called ???is large enough that the probability of a team winning is noticeably affected by the racial composition of the refereeing crew assigned to the game.???[/b]





    Two veteran players who are African-American, Mike James of the Minnesota Timberwolves and Alan Henderson of the Philadelphia 76ers, each said that they did not think black or white officials had treated them differently. ???If that???s going on, then it???s something that needs to be dealt with,??? James said. ???But I???ve never seen it.???.[/b]





    ???Basically, it suggests that if you spray-painted one of your starters white, you???d win a few more games,??? Mr. Wolfers said.[/b]


    The N.B.A. study reported no significant differences in how often white and black referees collectively called fouls on white and black players. Mr. Stern said he was therefore convinced ???that there???s no demonstration of any bias here ??? based upon more robust and more data that was available to us because we keep that data.???[/b]

  • deejdeej 5,125 Posts
    rockadelic while i'm all for a reasonable vetting of articles approaching race and open to devil's advocates on most subjects, your posts again and again scream asshurted 'you sound white'-ness

  • RockadelicRockadelic Out Digging 13,993 Posts
    rockadelic while i'm all for a reasonable vetting of articles approaching race and open to devil's advocates on most subjects, your posts again and again scream asshurted 'you sound white'-ness

    You're incapable of understanding reason and logic without throwing out a "race card" or the ever popular "you sound white asshurtness" bullshit.

    My ass will hurt when I bend over and let someone fuck me.....and that ain't happening in this lifetime.

    And from where I sit there is NOTHING more "white" that telling someone "they sound white"

  • deejdeej 5,125 Posts
    rockadelic while i'm all for a reasonable vetting of articles approaching race and open to devil's advocates on most subjects, your posts again and again scream asshurted 'you sound white'-ness

    You're incapable of understanding reason and logic withouth throwing out a "race card" or the ever popular "you sound white asshurtness" bullshit.

    My ass will hurt when I bend over and let someone fuck me.....and that ain't happening in this lifetime.

    And from where I sit there is NOTHING more "white" that telling someone "they sound white"
    so if someone black told you that you sound white, you'd accept it?

    thatsracist!.gif

  • BreakSelfBreakSelf 2,925 Posts


    ???Basically, it suggests that if you spray-painted one of your starters white, you???d win a few more games,??? Mr. Wolfers said.[/b]


    Pffft. Way to make a deeply important psycho-social phenomenon sound ridiculous, dude.

  • RockadelicRockadelic Out Digging 13,993 Posts
    rockadelic while i'm all for a reasonable vetting of articles approaching race and open to devil's advocates on most subjects, your posts again and again scream asshurted 'you sound white'-ness

    You're incapable of understanding reason and logic withouth throwing out a "race card" or the ever popular "you sound white asshurtness" bullshit.

    My ass will hurt when I bend over and let someone fuck me.....and that ain't happening in this lifetime.

    And from where I sit there is NOTHING more "white" that telling someone "they sound white"
    so if someone black told you that you sound white, you'd accept it?


    thatsracist!.gif

    Here's a shocker for you......I AM white....and my mirror reminds me of it every day.

    My experience here on SS has shown me that this "phrase" is used primarily by white people, to insult other white people.

    I've lived through 4 generations of a society that has made great strides in reducing racism and to see some idiots spend 1,000's of hours and dollars to try to dig deep and find more of it in areas of minutae is both disheartening and discouraging.

    Especially where there are areas it truly DOES exist and actually has an effect on our society beyond something as trivial as the NBA.

  • hogginthefogghogginthefogg 6,098 Posts
    I've lived through 4 generations of a society that has made great strides in reducing racism and to see some idiots spend 1,000's of hours and dollars to try to dig deep and find more of it in areas of minutae is both disheartening and discouraging.


    A cop pulls a guy over for failure to come to a complete stop at a stop sign. The guy protests, "Hey, I slowed down, didn't I?"

    The cop takes out his night stick and proceeds to beat the shit out of the guy. After about 20 wallops, the cop asks him, "Now...do you want me to slow down or stop?"


    Your "great strides in reducing racism" are a far cry from a complete stop.

  • keithvanhornkeithvanhorn 3,855 Posts


    I've lived through 4 generations of a society that has made great strides in reducing racism and to see some idiots spend 1,000's of hours and dollars to try to dig deep and find more of it in areas of minutae is both disheartening and discouraging.

    whether we have reduced racism and, if so, by what rate, is hardly something you can claim to know as fact based on personal experience. also, i think what you mean to say is that loud and obvious racism has been reduced because there would be no way for you to know what is said behind closed doors.

    as for this study, i think it is far more valuable (if approved of by peer studies) than your typical - "are blacks more likely to be arrested when pulled over by the cops" study....which by the way, was in a newspaper article i read yesterday...and the answer is YES (same for hispanics). i say more valuable because people need to be reminded how racisim exists in almost every forum, even for those (like referees) who are under a microscope.

  • spelunkspelunk 3,400 Posts
    Dudes. If y'all actually read and comprehend the article it's pretty clear that this study is pretty damn well thought out, and compensates for all of the arguments made here against it. I'm not defending it as perfect or unquestionable, but don't throw this one in the junk bin. This is something that should be studied, and is valuable because organized professional sports are one of the few instances in the real world where variables are so tightly controlled for that it becomes easier to see an unconcious racial bias.

    That said the argument regarding white European players is a good one, if overstated. You can't really see this statistically, but European players play differently, and many of them are known for their ability to draw fouls (ala Vlade Divac) or hide the fouls they commit.

  • faux_rillzfaux_rillz 14,343 Posts
    If y'all actually read and comprehend the article

    BAN!

  • DORDOR Two Ron Toe 9,905 Posts
    On a side topic.

    I wonder if any study has been done for hockey. Looking at stats dealing with fights, violence & penalties involving French Canadians players VS European players.

  • RockadelicRockadelic Out Digging 13,993 Posts


    ???Basically, it suggests that if you spray-painted one of your starters white, you???d win a few more games,??? Mr. Wolfers said.[/b]


    Pffft. Way to make a deeply important psycho-social phenomenon sound ridiculous, dude.

    The best part about this quote is that the dude didn't suggest that if you had one more white guy on your team you would win but suggested taking a non-white and spray painting them.

    Read between THOSE lines.

  • RockadelicRockadelic Out Digging 13,993 Posts
    I've lived through 4 generations of a society that has made great strides in reducing racism and to see some idiots spend 1,000's of hours and dollars to try to dig deep and find more of it in areas of minutae is both disheartening and discouraging.


    A cop pulls a guy over for failure to come to a complete stop at a stop sign. The guy protests, "Hey, I slowed down, didn't I?"

    The cop takes out his night stick and proceeds to beat the shit out of the guy. After about 20 wallops, the cop asks him, "Now...do you want me to slow down or stop?"


    Your "great strides in reducing racism" are a far cry from a complete stop.

    I wanna play the ridiculously irrelevent analogy game too....

    Dude weighs 800 pounds and has a crush on a beautiful woman. He works up enough nerve to ask her out and she says..

    "Ewwww, I can't go out with you, you're so fat and ugly"

    So the guy decides to change his life. Next day he starts working out and eating right. For five years he works out every day and loses 625 lbs. He lifts weights until he has the body of a Greek god.

    When he thinks he's improved everything he could possibly improve he finds the woman and asks her out again.

    Once again she turns him down.

    He says... "But I've spent the last 5 years working every day to lose weight and get in shape. I've bought the finest clothes and wear Italian hand made shoes. I drive a Jaguar and live in a Mansion. I have done everthing possible to make myself attractive to you, so why won't you go out with me?"

    "Well maybe you lost weight and made some cash, but you're still fuggin UGLY"!!!!!

  • HarveyCanalHarveyCanal "a distraction from my main thesis." 13,234 Posts


    I've lived through 4 generations of a society that has made great strides in reducing racism

    ^^^FAKE FINDS ALERT^^^

  • DJ_EnkiDJ_Enki 6,475 Posts
    So what ramifications does this hold for a mocha-complected muhfucka like Carlos Boozer?

  • RockadelicRockadelic Out Digging 13,993 Posts
    So what ramifications does this hold for a mocha-complected muhfucka like Carlos Boozer?

    He gets more favorable calls from the mocha-complected refs and the white ones that go to the Tanning Salon.

  • yuichiyuichi Urban sprawl 11,332 Posts
    so arguments about styles of play etc. based on race is more racist than these officials.

    Black people can jump and run better than most other races.
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