Size Doesn't Matter!
In a study that has already been done a zillion times, research shows that even small trinkets influence attitudes toward drugs and, presumably, prescribing behavior. Read about it in the NYT:
The two-part study, "All Gifts, Large and Small," showed the same thing a few years ago. And it has been replicated and replicated elsewhere. Is this because lawsuits are crushing innovation in social psychology? If so, we are all in trouble. Our access to the next life-saving social psychology study could be in jeopardy.
The more interesting studies in this area suggest that the reason "size doesn't matter" is the norm of reciprocity. You scratch my back--even a bit--and it kind of sets me up to scratch yours. Whether an hour of reiki in Hawaii would make you even more inclined to rub my back seeems likely, but perhaps we knew that already.
Of course, we also knew this already.