In certain sectors as pornography, military equipment, tabac and coal-industry we use negative sreening. Others sectors (e.g. automobile) are problematic for ESG reasons, but for diversification we want to invest in them; here we use positive/ best-in-class-screeing.
Part of the data given by our providers, is a norms-based screening. If two investments would be equal on all factors, we can use this to identify a difference which could lead to an investment decision.