Per Øystein Saksvik is a professor at The Department of Psychology, Norwegian University of Science and Technology (since 2001) where he also reached his Ph.D. in 1991 in Occupational Health Psychology. He has ten years of experience as contract researcher. He does research in occupational health and safety, organizational interventions, sickness absenteeism and presenteeism, and organizational change.  Marit Christensen has a Ph D psychology and work as an associate professor at the Department of Psychology at the Norwegian University og Science and Technology (NTNU). Her research interests are related to positive occupational health psychology, health promoting work, work environment surveys, work engagement, co-workership and healthy productive organisations. She has been a project leader for two Nordic projects regarding positive factors at work, and now she is in the research group for the ARK-project (work and climate surveys in the academic sector). The ARK research platform at the time consists of data from 19 different institutions where 15000 respondents have participated.