What is the opposite of ad hominem. I mean when something is given more credence than it deserves because of who's saying it.
"Appeal to authority" comes to mind but is not exactly what I am looking for.
Edit: Appeal to authority is not what I am looking for because the person making the statement is not the "authority" on the subject, for example Einstein making a statement about optimal seating arrangement in his office.
Best Answer
In business-speak one often hears that a message benefits from a "Halo-Effect" because the messenger has a good reputation for one reason or another.