TY - GEN AU - Lacomba Arias, Juan Antonio AU - Lagos García, Francisco Miguel PY - 2008 UR - http://hdl.handle.net/10481/31521 AB - In this paper we analyze the effects of changing Social Security parameters on the optimal legal retirement age. Two Social Security Systems are studied, with opposite results. When the pension scheme has a defined contribution, a more redistributive... LA - eng PB - Universidad de Granada. Departamento de Teoría e Historia Económica KW - Legal retirement age KW - Pension benefits KW - Social Security TI - Defined contribution vs defined pension: reforming the legal retirement age ER -