TY - RPRT AU - Praag, Bernard M. S. van AU - Cardoso, Pedro TI - "Should I Pay for You or for Myself?" The Optimal Level and Composition of Retirement Benefit Systems PY - 2001/Jan/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 249 UR - https://www.iza.org/publications/dp249 AB - Feldstein [1985] posed the questions of what would be the optimal level of retirement benefit, and what would be the optimal mix between the pay-as-you-go system and the funded pension system under the assumption of an exogenous interest rate. We reconsider the problem with the addition of a flexible production function and, consequently, an endogenous interest rate. Moreover, we allow the contributions rate è to be negative as well. In the case of a negative è , the retired subsidize the workers out of their saved capital. This case turns out to be the optimal one in situations of low population growth. KW - welfare systems KW - retirement benefits KW - funded pensions KW - pay-as-you-go systems KW - Social security ER -