Fairness, reciprocity, and wage rigidity

"This paper contains a review of empirical work related to wage rigidity, where researchers have collected their own data. The work includes field studies, economic experiments, and psychological surveys. Economists have done the field studies and experiments, and management scientists and experimental psychologists have done the surveys. There is a remarkable agreement among the observations of all these investigators"--Forschungsinstitut zur Zukunft der Arbeit web site.