the winner is the person whose number is closest to 2/3 times the average The winner will win $5 minus the difference in pennies between her choice and that two-thirds of the average."

所选数字最接近2/3倍平均数人是赢家,赢家的奖金是5美元减去,所选数和平均数三分之二之差的百分数

耶鲁公开课 - 博弈论课程节选

The only difference is their choice of target.

BBC: Charlie Hebdo and its place in French journalism

Given, though, that the methodology of each ranking is subjective in its choice of criteria, and that the difference between a school ranked 25th or 35th is probably not that great, the results should never be the most influential factor when identifying the right school for you.

FORBES: The Best Business Schools of 2012 - The Ranking of MBA Rankings

More information on the "Your Travel Choice Makes a Difference" campaign is available here.

CNN: The International Ecotourism Society statement