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 examines the advantages and disadvantages of non-financial defined contribution (NDC) pension plans relative to financial defined contribution (FDC) pension plans. It also shows how an NDC outcome can be replicated in a FDC framework

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 develops an analytical framework for the design of pension systems, taking the functions of the pension system as the guiding principle. It discusses the economic principles underlying these functions and their implementation in practice. In particular, it distinguishes three...

This paper takes stock of the evolution in pension systems and the challenges that remain for the future. It derives a typology of pension systems and uses this to discuss the strengths and weaknesses of alternative systems. After describing how pension systems in the industrial world have been...

This paper examines some of the main behavioral patterns that determine personal saving, investment, and retirement decisions, and considers ways to move them in a socially desirable direction. We pay special attention to factors contributing to people making choices that are not in line with...

In this paper we consider the influence of the demography on the dynamic equilibrium of an economy. More precisely, we focus on mandatory pensions, as in most Western countries except USA and Switzerland the role of ‘the third pension-pillar,' based on voluntary savings, is relatively minor....