“…Graduates in a sub-graduate occupation who are satisfied are defined as "apparently" over-educated, whereas those who are dissatisfied are called genuinely over-educated (Chevalier, 2000). In a fourth approach, the educational requirement is a systematic evaluation who specifies the required level of education for any occupational qualification based on the the American classification "Dictionary of Titles" (Thurow and Lucas, 1972, Hatrog, 1980, Rumberger, 1987, Kiker and Santos, 1991, Oosterbeek and Webbink, 1996.…”