我有几个朋友,不是搞经济的,更不喜欢高深的理论,但常读我的专栏。为了投资,他们时不时通过越洋电话,与我商量“入市大计”。平时在专栏里,我喜欢斩钉截铁,但说到真金白银的投资决策,又有多少自信?完全没自信。首先,我的底线,是费雪发明、由阿尔钦传授的利息理论。这是一套逻辑井然的推 I have a few friends, not engaged in economics, but do not like advanced theory, but often read my column. In order to invest, they talked to me about “going into the market” from time to time through overseas phone calls. Usually in the column, I like to get things done, but when it comes to real money investment decisions, how much confidence? There is no confidence. First of all, my bottom line is the theory of interest that Fisher invented and taught by Alchian. This is a logical set of push