研究任何物种的现代方法是看它在一生中做些什么、吃些什么、被谁吃掉、居住在什么类型的环境中,查理斯·埃尔顿作为生态学的先驱,70年前就用朴实而令人难忘的语言指出 “当一个生态学家说道,‘有一只獾’,[学生]在脑海中就应闪现出它属于哪个社会位置的明确概念,就好像他说,‘有一个牧师。’”我们这里讨论的是投机者对市场的研究,由于市场参与者的多样性、复杂性,对市场的研究既需 The modern way of studying any species is to see what it does during its lifetime, what it eats, who it eats, what type of environment it lives in. Charlton Elton, a pioneer in ecology, used it 70 years ago Plain and unforgettable language states: “When an ecologist says, ’There is a badger,’ [the student] should have in his head a clear concept of where it belongs to society, as if he said, ’There is a Priest. ’ ”We are discussing here speculators on the market research, due to the diversity of market participants, the complexity of market research both