The study looked at three cities where the newspaper and radio station were owned by the same company (“cross-ownership”), due to having been grandfathered in when the FCC rule was created in 1975.

The FCC revoked multiple rules, but one of those prevented cross-ownership. The stated goal of all of the rules was to encourage a diversity of views. At least with respect to the cross-ownership rule, this study found it wasn’t necessary for a diversity of views to exist.