书上P500，chapter 8中有一句话：
In contrast, ESG screening premised on relative and peer-group datasets provides better context for building and maintaining a balanced, diversified portfolio.
实在没读懂这句话，说了是screening了，为什么还能maintain一个diversified portfolio。
carol102 · 2024年12月07日
书上P500，chapter 8中有一句话：
In contrast, ESG screening premised on relative and peer-group datasets provides better context for building and maintaining a balanced, diversified portfolio.
实在没读懂这句话，说了是screening了，为什么还能maintain一个diversified portfolio。