There are some tricks here that you are overlooking. A Realtor can withdraw the listing and then resubmit it as a new listing with a lower price. That way it won’t show up as a reduction.
A second thing that happens, the Realtor will list the price at some ridiculously high amount. Then he lowers it to a more reasonable level but still quite high. In walks the man with the ego who wants to go a little lower to his price or nothing. Bang you got him.
Another item I would like to figure out a way to track are the FISBO’s.