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http://online.wsj.com/articles/study-shorter-nba-refs-call-more-fouls-1415046039
Then they split NBA crews into three tiers: 6 feet and under, 6 feet to 6 feet 3 and 6 feet 3 and taller. What they found was that each additional inch per crew resulted in .017 fewer personal fouls per 48 minutes. That means the shortest crew, at 8 2/3 inches shorter than the tallest crew, calls .147 fouls more per game, or a 3.6% increase from the league average.
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So what could possibly explain this discrepancy? The authors have two theories. The first is that referee vantage points differ by their heights. It’s possible that shorter referee crews are actually calling better games than their taller peers.
The other theory is more speculative—and more exciting to think about. They hypothesize it could have something to do with a so-called Napoleon complex in professional referees.
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