The authors examined (a) whether core self-evaluations in adolescence and young adulthood predict income at midlife and (b) whether people with positive core self-evaluations are more likely to capitalize on advantages resulting from family socioeconomic status and academic achievement, resulting in even higher levels of income at midcareer. The sample consisted of participants from the National Longitudinal Survey of Youth, a national probability sample that first surveyed participants in 1979. The authors found that core self-evaluations and family socioeconomic status and academic achievement predict income and that, furthermore, high core self-evaluations enhance the benefits derived from these factors. Overall, it appears that individuals with positive core self-evaluations are particularly adept at translating early advantages into later economic success.
Judge et al. (2007) studied this question.