This study investigates the relationship between the sustainability of public debt and inequality in an endogenous growth model with heterogeneous agents. We show that the threshold for the sustainability of public debt is related to not only the relative size of public debt but also inequality. In addition, this study examines the effects of budget deficit and redistributive policies on the sustainability of public debt and inequality. We show that an increase in the deficit ratio or the redistributive tax makes public debt less sustainable. If the economy falls into the unsustainable region as a result of the policy change, both public debt and inequality continue to increase.

Like in a number of other transition countries, the Croatian pension system comprises a traditional public pay-as-you-go scheme and a mandatory funded scheme (second pillar) that will provide increasing amounts of supplementary pensions to those entering retirement in the future. Due to the continuing economic crisis, the public scheme is currently under enormous financial strain, with a sizeable impact on central government finances. At the same time, the level of benefits deriving from the overall system is likely to become inadequately low in the long run. In this paper, we describe the existing system and project its future development under current rules. We also discuss options for further reforming the system and highlight their potential impact on pension finances, public budgets and retirement incomes, as this may provide lessons, which are of interest elsewhere.

The main goal of the Norwegian pension reform of 2011 is to improve long run fiscal sustainability, not least through stronger labour supply incentives. We assess to what extent the reform is likely to live up to these intentions. To this end we combine a dynamic microsimulation model, which includes a complete description of the Norwegian population and the pension system, with CGE-modelling of the effects on all government revenues and expenditures. We find that the reform is likely to make a great fiscal impact in the long run, and higher employment plays an important role in this respect.

In times of decreasing mortality, one way to stabilise a PAYG pension system is to interrelate the retirement age to the anticipated average lifespan. This paper investigates two approaches for Germany: one is to keep the average retirement duration constant, the other to define a constant share of the total lifespan for the retirement period. Our simulation model uses a Leslie matrix population projection, a Solow-Swan growth model and a detailed calculation of the German pension insurance budget. Our results show quite a significant impact on the insurance level and a rather small effect on the contribution rate, which is characteristic of a Bismarckian system.