一、摘要 索罗斯在1987年撰写的《金融炼金术》 一书中，曾经提出过一个重要的命题：I believe the market prices are always wrong in the sense that they present a biased view of the future.市场有效假说只

Summary Stanley Kroll mentioned in his book “Kroll on Futures Trading Strategy” that his taking profit methods is divided into three parts: when the target