Yossi Vardi’s lecture – How yo identify winners (Hebrew) http://youtu.be/7psKCj5dVoQ?t=10m27s
(and for English Speakers: http://youtu.be/waO8KKtVgaQ?t=13s)
In case you don’t know who is the man: Yossi in wikipedia
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Yossi Vardi gives a lecture