Ivy League have produced many Nobel laureates, winners of the Nobel Prize and the Nobel Memorial Prize in Economic Sciences. According to the Nobel Foundation's website, the number of prize-winners affiliated with each Ivy League university at the time of their awards is: Brown, 2; Columbia, 17; Cornell, 8; Dartmouth, 0; Harvard, 36; Penn, 4; Princeton, 14; and Yale, 8. In addition, each university self-reports their number of affiliated Nobel laureates, but they use varying definitions for which Nobel winners they claim (for example, alumni, active faculty, former faculty, visiting faculty, adjunct faculty, etc.) Collaboration between the member schools is illustrated by
Ivy League games. In only 11 instances in the history of Ivy League basketball, and in only seven seasons since Yale's 1962 title, has neither Penn nor Princeton won at least a share of the Ivy League title in basketball, with Princeton champion or co-champion 26 times and Penn 25 times. Penn has won 21 outright, Princeton 19 outright. Princeton has been a co-champion 7 times, sharing 4 of those titles with Penn (these 4 seasons represent the only times Penn has been co-champion). Harvard won its first title of either variety in 2011, losing a dramatic play-off game to Princeton for