Historically, multilateralism of investment treaties has been failed, such as the Havana Charter of 1948, MAI of OECD, TRIMS of WTO. Contrarily, BIT and RTA are in the boom way.
从1948年《哈瓦纳宪章》到WTO的TRIMS,国际投资法制经历了从多边投资条约的失败到双边与区域性投资协定繁盛这样一个发展过程,但是国际投资法制多边化进程从来也没有停止过。