After quitting her job in active management, Stephanie Griffiths started researching the academic evidence on investing and active fund management and concluded that, from a personal point of view, despite her experience and expertise, she was better off putting almost all her money in low-cost index funds.

She has since become a financial educator and has just written a book, Sit Still and Prosper, which shows people how to have a successful investment experience with the minimum of fuss, effort and worry.

The interview offers a fascinating into how active fund managers actually think, and it’s well worth listening to. Here are some of the highlights: