Many Western countries with an aging population consider reforms of their pay-as-you-go pension systems. In Sweden a new pension system has already been decided and implemented. This paper gives a brief background to the Swedish reforms in the 1990s and explains the structure of the new system.

In this paper, we combine macro and microeconomic approaches to a pension reform. First, we modify an OLG model and estimate macroeconomic effects of a pension systém switch from a pure PAYG to a mixed system. Second, we employ macroeconomic results in a microeconomic simulation in which we...