According to another article published in Frontiers in Psychology, “in the ERI model, work-related stress is conceptualized as lack of fairness of the reciprocity of efforts expended and reward received at work.”

Lead study author Mathilde Lavigne-Robichaud, R.D., M.S., doctoral candidate, Population Health and Optimal Health Practices Research Unit, CHU de Québec-Université Laval Research Center in Quebec, Canada, said in a news release that job strain “refers to work environments where employees face a combination of high job demands and low control over their work.” The Canadian researchers also studied the effects of both stress and ERI on coronary collapse.