Most people don’t consider the issue nearly as seriously as they should and because of that they end up in real trouble.
Take the case of investment returns. I am often asked to comment on a portfolio’s performance, usually after the investor volunteers views on the matter: “He’s done very well in the last few years,” or “I got my 6-7%; it’s fine,” or other variations on the theme.
Relative (he’s done very well…) or absolute (…my 6-7%…) statements like the ones above are not helpful nor indicative of skill. To say that someone has done well or that your portfolio returns are fine requires some organizational work. Just as in the world of art (where to appreciate the aesthetic value of a superb painting you must have been exposed to some awful stuff), investment returns need to be put in context. At a minimum we need to relate them to the chosen asset allocation and to the opportunity set available in the markets.
The asset allocation is necessary because it sets the risk level of the portfolio. Using two ETFs per currency, one for global unhedged equities and one for local currency government bonds, here is what returns were like in the last five years: