"We believe that, with the experience of Thailand handling this situation in the past two decades, where at times there were several hundred thousand came over the Thai borders this is,on one hand,serious issue,"

VOA: standard.2009.06.09

The options have been traded for several decades, starting with the Chicago Board Options Exchange.

期权最初从芝加哥期权交易所进行交易,到现在已经交易了几十年

耶鲁公开课 - 金融市场课程节选