why should it be that small first favors often stimulate larger return favors? One important reason concerns the clearly unpleasant character of the feeling of indebtedness. Most of us find it highly disagreeable to be in a state of obligation. It weighs heavily on us and demands to be removed. It is not difficult to trace the source of this feeling. Because reciprocal arrangements are so vital in human social systems, we have been conditioned to be uncomfortable when beholden.
