Do you or do you not have any policy, guideline, or even essay guidance recommending that introductions not include verbatim excerpts from an article's body, or are you just making that up based on personal preferences? Are you aware of how many featured articles include verbatim duplication between their intros and bodies? I have repeatedly presented sources citing the peer reviewed literature reviews and other sources secondary to peer reviewed academic journal papers in economics. When was the last time you did?