
In the field of factor investing, quality is undoubtedly the equity factor with the weakest consensus. This research investigates the best way to define it. In order to capture the multi-faceted reality of the factor depicted in academia, we address the quality factor through a multidimensional process by defining four self-reliant pillars: profitability, earnings quality, safety and investment. To better fit institutional investor’s’ needs, we analyze the resulting factor by focusing on the last eighteen years and on a global developed markets universe of liquid stocks (large and mid-caps).