Chemist_MZ 发表于 2013-10-15 21:48 1. P/E in the long run tends to have a mean reversion pattern. If P/E is too high which means the ...
As for the first issue, according to your arguments,could I derive the conclusions as follows? The P/E value of a firm is associated with the industy to which it belongs,the firm's scale ,the development stage and so on.Consequently,it is obviously wrong that the higher the P/E value,the better the firm.Nonetheless,in one sense,the higher value does reflect some good charactoristics such as the precious growth opportunity the investors expect.So ,to some degree,it makes sense to compare different P/E values. For instance,suppose that there exist two same firms ,which has exactly the same cost functions,the same productivities and so on but for the growth opportunities.The market will expect the firm that harbours a better growth potential has a higher P/E value.
As for the second question, in my humble opinion, the investors should not only care about the duration but the holding period yield. Firstly,assume that the investors face the interest rate risk, admittedly,we do pay attention to the bond duration because it demonstrates the interest rate elasticity of the bond and it suggests the capital loss.However, the duration or the dollar duration ignores the income of the coupons.In fact,the investors of the bonds have two part of income:the capital gain(loss)and the coupon income .In consequence,the investors should attach importance to the two parts of income if the investors'aim is to maximize their' return at the given risk. As it is, we can imagine that the money is sure to flow to some place where the money can get more return.So no matter what financial products you decide to choose,the only thing you must deliberate thoroughly is that which return is more higher. The holding period return is the very return that encompasses all income you can get .But the HPR has a lethal defect: it is an ex post return by which you can evaluate your investment ,but you cannot use it to choose the financial products because the HPR is considerably uncertain.COnsequently,before investment ,priorities should be given to the duration and the coupon rate.BUt when it comes to evaluates your investment,the HPR is undoubtedly an effective instrument.