The empirical relationship between educational attainment and credentials with socioeconomic attainment is well established, but why this relationship arises remains in doubt. The author of this article discusses seven types of middle-range theories meant to explain the relationship: human capital, screening (including filtering), signaling,…

By the time today's eighth graders reach age 28-29, approximately 66% will have had some kind of postsecondary education or training. There has been a dramatic upward shift in the education and skill requirements for all occupations. Access to higher education has become the threshold for career success. Elite managerial and professional jobs,…