Supporters of this theory consider the labor market divided into two non-competing sectors, which are primary and secondary. Work in the primary sector is characterized by relatively high wages, stable employment, quality working arrangements and good career prospects." It is generally closed to external competition or severely limited by qualifications with a male predominance in this sector.” (Gurjao, 2015). Work in the secondary sector, however, is linked to low levels of pay, a lack of stable employment and career prospects and poor working conditions. Women with unstable part-time jobs predominate in this market, where employment is often non-permanent and unreliable, and employers avoid investing resources, fearing they will not recover their work.