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	Job Demands-Resources Model	Psychological Capital Scale
Field	Organizational Behavior	Organizational Behavior
Family	Latent structure	Latent structure
Year of origin	2001	2007
Originator	Evangelia Demerouti & Arnold B. Bakker (with Friedhelm Nachreiner & Wilmar Schaufeli)	Fred Luthans, Bruce J. Avolio, James B. Avey & Carolyn M. Youssef
Type	Dual-process work-design and well-being model	Higher-order positive psychological resource scale
Seminal source	Demerouti, E., Bakker, A. B., Nachreiner, F., & Schaufeli, W. B. (2001). The job demands-resources model of burnout. Journal of Applied Psychology, 86(3), 499-512.	Luthans, F., Avolio, B. J., Avey, J. B., & Norman, S. M. (2007). Positive psychological capital: Measurement and relationship with performance and satisfaction. Personnel Psychology, 60(3), 541-572.
Aliases	JD-R Model, JD-R Theory, Job Demands-Resources Theory, Demands-Resources Framework	PsyCap, PCQ, Psychological Capital Questionnaire, HERO Model
Related	3	3
Summary	The Job Demands-Resources (JD-R) model is a flexible framework in organizational behavior and occupational health psychology that explains employee well-being and performance through two parallel processes. Introduced by Demerouti, Bakker, Nachreiner, and Schaufeli in 2001 and elaborated by Bakker and Demerouti in 2007, it holds that every job can be described by demands — aspects requiring sustained effort — and resources — aspects that help achieve goals, reduce demands, or stimulate growth. A health-impairment process runs from chronic demands to exhaustion and strain, while a motivational process runs from resources to work engagement and positive outcomes. The two paths interact: resources buffer the impact of demands on strain, and demands can amplify the motivating power of resources. Unlike fixed lists of job features, the JD-R model is deliberately open, letting researchers slot in whatever demands and resources matter in a given occupation.	Psychological capital (PsyCap) is a higher-order positive psychological resource in the positive-organizational-behavior tradition, composed of four state-like capacities: hope, efficacy (self-confidence), resilience, and optimism — together the 'HERO' constructs. Fred Luthans and colleagues argued that these four share a common underlying mechanism — a positive appraisal of circumstances and probability of success based on motivated effort and perseverance — so that their combination predicts outcomes better than any one alone. The Psychological Capital Questionnaire (PCQ) operationalizes the four capacities with validated subscales, and Luthans, Avolio, Avey, and Norman's 2007 Personnel Psychology paper established the measure and showed that the composite relates to performance and satisfaction. A central claim, developed in Luthans, Youssef, and Avolio's 2007 book, is that PsyCap is state-like and therefore developable, distinguishing it from fixed traits.