Job demands-resources model

The job demands-resources model or JD-R model is an occupational stress model that suggests strain is a response to imbalance between demands on the individual and the resources he or she has to deal with those demands. The JD-R was introduced as an alternative to other models of employee well-being, such as the demand-control model and the effort-reward imbalance model. The authors of the JD-R model argue that these models "have been restricted to a given and limited set of predictor variables that may not be relevant for all job positions" (p. 309) Therefore, the JD-R incorporates a wide range of working conditions into the analyses of organizations and employees. Furthermore, instead of focusing solely on negative outcome variables (e.g., burnout, ill health, and repetitive strain) the JD-R model includes both negative and positive indicators and outcomes of employee well-being.
Basic assumptions.
The JD-R model can be summarized with a short list of assumptions/premises:
Practical implications.
The JD-R model assumes that whereas every occupation may have its own specific working characteristics, these characteristics can be classified in two general categories (i.e. job demands and job resources), thus constituting an overarching model that may be applied to various occupational settings, irrespective of the particular demands and resources involved. The central assumption of the JD-R model is that job strain develops – irrespective of the type of job or occupation – when (certain) job demands are high and when (certain) job resources are limited. In contrast, work engagement is most likely when job resources are high (also in the face of high job demands). This implies that the JD-R model can be used as a tool for human resource management.
Continuing Research.
The most recent article written by the authors of the original JD-R paper proposes that the interactions of demands and resources are nuanced and not clearly understood. Here Bakker and Demerouti suggest that demands may sometimes actually have a positive influence on the employee, by providing a challenge to be overcome rather than an insurmountable obstacle. In this same article, the authors describe a cumulative effect of demands and resources in their suggestion of gain and loss spirals. They conclude that these issues and that of workplace aggression may all be part of the JD-R framework.