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Reader Comments (Page 1 of 1)
4-06-2008 @ 3:05PM
Josh Weinberg said...
Actually, the study controls for all the variables you mention.
On page 5 there is an explanation of control for "regional fixed effects" such as variation in "style" of play and possible bias of referees toward certain regions.
As for diving, the authors concede that there are some "non-violent" yellow cards, but the vast majority are given for flagrant physical fouls.
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