TY - BOOK T1 - Social security reform with imperfect substitution between less and more experienced workers T2 - Documentos de trabajo (Banco de España) A1 - Rojas, Juan A. LA - Spanish PP - Madrid PB - Banco de España YR - 2008 UL - https://colectivo.uloyola.es/Record/L87429 OP - 24 KW - Seguridad social : Modelos econométricos ER -