t*******n
发帖数: 4445 | 1 Just read about it. Very interesting......
===============================================================
The theorem is due to the Bank of Sweden Prize ("Nobel prize in Economics")
winning economist Kenneth Arrow, who proved it in his PhD thesis and
popularized it in his 1951 book Social Choice and Individual Values.
The theorem's content, somewhat simplified, is as follows. A society needs to
agree on a preference order among several different options. Each individual
in the society has his |
|
