We explore the feasibility of a funded pension system with intergenerational risk sharing when participation in the system is voluntary. Typically, the willingness of the young to participate depends on their belief about the future young's willingness to do so. We characterise equilibria with...

We analyze the rationale for the pay-as-you-go (paygo) pension system existence on diversi fication grounds. A continuous-time portfolio choice setting is built, basing on Merton (1971)´s analysis, where a reasonable balance between the taking account of the economic and fi nancial facets of...

This paper explores the introduction of collective risk-sharing elements in defined contribution pension contracts. We consider status-contingent, age-contingent and asset contingent risk-sharing arrangements. All arrangements raise aggregate welfare, as measured by equivalent variations. While...

This paper explores the introduction of collective risk-sharing elements in defined contribution pension contracts. We consider status-contingent, age-contingent and asset contingent risk-sharing arrangements. All arrangements raise aggregate welfare, as measured by equivalent variations. While...

This paper contains nine different essays on Social Security reform and multi-pillar pension plans. The nine topics are: 1. Transition costs2. Progressive indexation3. Government guarantees on private accounts4. Life cycle investing5. Impact of add-on accounts on Social Security solvency6....

This article reviews the literature on the optimal design and regulation of funded pension schemes. We first characterize optimal saving and investment over an individual's life cycle. Within a stylized modeling framework, we explore optimal individual saving and investing behavior....