Investing at a certain stage is particularly prone to indulging in the construction of a perfect system, but this is not much different from dedicating oneself to manufacturing perpetual motion machines for life. The more complex the system is and the more addicted one's thinking is to details, the further away it is from the essence of investment. The longer you invest, the more you will realize that the most reliable approach is a simple yet essential methodology, and the most important thing is the success of the overall plan and strategy.
A more dangerous situation for an investor is to have a feeling of "truth in hand" early on. If you are a bit bored or competitive at the same time, and criticize those who are slightly different from the Tao, it basically indicates that there is no room for progress. Investment certainly has unshakable basic principles, but there is no "sacred model" for the weights of different elements of investment. Of course, this is not about changing one's mind, but about maintaining an open mind, which is actually an ability.
FromPB=PE*ROE这个公式来看,当ROE=8%的时候,即便PEyes35倍但PB却只有2.8倍。若公司能够持续成长,ROEUpgrade to25%,则届时的PEstay25的时候,PB却反而提升到了6.25倍。由此可见,PE反映的是预期溢价,而PB反映的是资产溢价。通常预期的反映远早于ROE的实际变动,而PB则相对同步或者滞后于ROEChanges in.