Imagine we are attempting to design a stock picking model that will outperform the market over the next ten years. After a great deal of forensic research and testing we finalise our approach. Although we couldn’t know this in advance, the system we devise is optimal – there is no better way of tackling the problem we are trying to solve. Given this, what are we likely to do with the investment process we have developed over the coming years?
Change it and make it worse.
More here – Behavioural Investment