Isn't this just Indexing - simply following the shares in any given index, such as the FTSE 100 or the S&P 500?
Well, partly; but evidence-based investing - as the name implies - is an approach based on evidence rather than luck (or skill, as some fund managers like to call it); and incorporates not only traditional indexing, but also asset-class investing drawing on the latest academic research.
Our series on Smart Beta is a good example of how investing theory has developed, and continues to evolve.