After much debate, the SEC on Friday approved a Nasdaq proposal that will require listed companies to adopt several diversity-related measures.  Nasdaq first made this proposal, which requires listed companies to publicly disclose diversity information about their board members and either hire “diverse” members to their boards or explain why they do not in writing, last December.  Under SEC regulations, self-regulatory organizations such as Nasdaq must formally submit proposed rule changes to the Commission.  Nasdaq made some minor revisions to the proposed rule in February that granted smaller boards and newly listed companies some compliance leeway, but the proposal has otherwise survived scrutiny from conservatives, corporate interests, and popular newspaper editorial boards.