Almost all papers on the feasibility of a Pareto improving transition path from a Pay-as-you-go to a fully funded system employ lump sum or wage taxes for financing the compensating transfers. This paper focuses on this issue by using consumption or proportional income taxes and applying a...

I show that, in a benchmark OLG model with a Cobb-Douglas production function, returns to the pay-as-you-go system and the funded system are perfectly correlated in the presence of uncertainty about future technology, demography and capital stock. Therefore, uncertainty as such might not be a...

This chapter reviews the literature on intergenerational risk sharing (IRS). We explore to what extent and how a market economy with an appropriate institutional setting can replicate a social planner's solution in models with increasing levels of complexity. In particular, we do this for...

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...

Intergenerational risk sharing by funded pension schemes may increase welfare in an ex ante sense. However, it also suffers from a time inconsistency problem. In particular, young generations may be unwilling to start participating in a pension scheme if this requires them to make huge transfers...

This paper analyzes the transition from a pay-as-you-go to a fully funded pension system within the framework of endogenous growth in the presence of uncertainty. Gyárfás and Marquardt (2001) prove the possibility of a Pareto improving conversion in a certain world. Two distinct kinds of...

In this paper we model an OLG-economy where labour supply is endogenously determined and where we assume that there are two pension systems, namely, a pay-as-you-go system and a funded system. The main question is whether there is an equilibrium involving an old-age pensions system, partly...

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...

The currently observed demographic change consists of two independent developments that differ in structure and persistence: (1) A slow, monotonic and (presumably) permanent ageing effect caused by an increasing life expectancy; (2) a more rapidly changing, non-monotonic and less permanent...