This paper studies the effect of demographic change on national saving, global interest rates, and international capital flows, focusing on the role of the public pension system. We develop a small open economy overlapping generations model to illustrate the channels through which demographic...

We explore the benefits of intergenerational risk-sharing through both private funded pensions and via the public debt. We use a multi-period overlapping generations model with a PAYG pension pillar, a funded pension pillar and a government. Shocks are smoothed via the public debt and variations...

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 examines the allocation of market risk in a general class of collective pension arrangements: Collective Defined Contribution (CDC) schemes. In a CDC scheme participants collectively share funding risk through benefit level adjustments. There is a concern that, if not well designed,...

The aim of this contribution is to study the sustainability of a pay-as-you-go pension fund, through the analysis of demographic risk affecting these types of pension funds. A model for the evolution of the fund is presented considering the stochastic variables global asset return and new...

This paper examines the optimal allocation of risk across generations whose savings mix is subject to illiquidity in the form of uncertain trading costs. We use a stylized two-period OLG framework, where each generation makes a portfolio allocation decision for retirement, and show that...