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Suggestion systems offer the opportunity for organizations to benefit directly from their employees' innovativeness. The purpose of this paper is to investigate processes underlying employees' involvement with suggestion systems. It examines the relationship between interactional justice of the suggestion system, valence of the suggestion system (VSS), employees' wellbeing, and their motivation to submit suggestions.

Data were collected in a German manufacturing company. In total, 142 questionnaires were completed (response rate: 71 percent). The paper applies the bootstrapping method in order to test the hypothesized relationships.

Results support the hypothesized moderated mediation model, in that VSS mediated the positive relationship between interactional justice and motivation to submit suggestions when wellbeing was high or moderate, but not …