Treballs Finals del Màster d'Economia, Facultat d'Economia i Empresa, Universitat de Barcelona. Curs: 2021-2022, Tutor: Javier Vázquez-Grenno, This thesis takes an insight look at the situation of inter-generational mobility and parental background effects in Spain. Taking advantage of a new data base, we are able to deepen the previous analysis considering individual characteristics affected by parents like, education, type of school attended, human capital promotion by parents, occupation and social network effects on their education attainment, occupational outcome and earnings of individuals and the household level. These results are consistent with literatura proving the existence of imperfect labor markets and a slight unequal educational quality.