The findings of one of the few studies into closed door matches.
Richmond captain Trent Cotchin and former Hawthorn captain Sam Mitchell were co-winners of the 2012 Brownlow Medal, after Essendon captain Jobe Watson was ruled ineligible.
Julian Smith/AAP
Why are NBA players taking more three pointers, baseball pitchers throwing slower, and soccer player salaries skyrocketing? It all comes down to the economics of sport.