LESS EFFICIENT MARKET HYPOTHESIS—a review of the C Asness paper
LESS EFFICIENT MARKET HYPOTHESIS—a review of the C Asness paper As some may have noted I spend a lot of time writing and thinking about investment theory and philosophies. The reasons for this are not that I like delving into esoteric subjects, but over my time in investing, I have yet to come across a multi-decade successful investor that doesn’t have a robust investment philosophy and process (IP&P). I am after repeatable alpha over long timeframes. A strong IP&P makes an average investor good and a good investor great, IMO. Evolving and improving my IP&P I think is an important part of a successful investment journey. Secondly, I have been meaning to write something about the efficiency of markets for some time and this paper forces my hand. I became irritated that old colleagues were complaining about how the markets were much more difficult and efficient now and that they couldn’t generate the returns they did previously, like in the 1980s and 1990s...