False beliefs are what keep us from achieving our best. In the active, passive management debate by analogy, false beliefs are those preventing investors from building an optimal portfolio. I stress that in this debate, a number of false beliefs hamper portfolio construction optimisation.

As a researcher on active and passive management and an expert in portfolio construction, I am convinced of the importance of the combination of active and passive funds to build outperforming portfolios.

My priority is therefore, first of all, to highlight these false beliefs in order to subsequently provide you with solutions to improve the construction of your portfolios.