The paper addresses two related issues: the optimal intergenerational sharing of laborproductivity risks, through a Pay-As-You-Go (PAYG) social security, and the mix ofPAYG and savings for retirement provision in a small open economy. It shows that <I>partial</I> contingency of the social security on...</i>

This paper addresses two related issues: the optimal intergenerational sharing of labor productivity risks, through a Pay-As-You-Go (PAYG) social security with contingent rates of benefits and contributions, and the optimal combination of PAYG and funded savings in a small open economy. It shows...