In classical pension design, there are essentially two kinds of pension schemes: Defined Benefit (DB) and Defined Contribution (DC) plans. Each scheme corresponds to a different philosophy of spreading risk between the stakeholders: in a DB, the main risks are taken by the organizer of the plan,...

The aim of this paper is to analyze a particular demographic risk in pay-as-you-go (PAYG) pension funds. We focus on the influence of the demographic variable 'new entrants' and on its impact on the future evolution of the fund. The model adapts well to a closed pension fund which operates...

One of the main reasons to include pay-as-you-go (PAYG) schemes in multi-pillared pension systems is that they may entail beneficial risk-sharing and diversification features. However, depending on the "pension formula" these features vary significantly for different types of PAYG schemes. We...