Based on two decades of Danish register data at the individual level, this paper finds that a 1-dollar increase in pension wealth leads to a 42-cent rise in total debt for a group of low-wage earners. Collective bargaining in the labor market provides time-sector variation in mandatory pension contribution rates, which we exploit in two empirical research designs; an event study and a cross-sectional instrumental variable regression model. Both methods demonstrate that the debt rise is accompanied by increased housing wealth and homeownership rates. Together, the empirical evidence indicates that mandatory pension contributions lead to a significant increase in net wealth, as well as in gross debt.

The paper shows the impact of changes in multi-pillar pension systems in six Central and Eastern European countries for individual pension wealth. It demonstrates that the post-crisis changes in pension system reduced pension wealth of workers in Poland and increased in Lithuania and Slovakia. The change did not have significant impact on pension wealth in Estonia and Romania. The magnitude of this effect is highest in those countries where the reduction of the fully-funded pension contribution was permanent. Loss or gain in pension wealth varies with age of participants – it is higher for younger people, who will accumulate their pension wealth to a larger extent after the change. The level of the change in pension wealth depends also on the wage level – higher earners lose more relative to the average wage level. The difference in pension wealth depends also on the difference between rates of return in fully funded and pay-as-you-go (PAYG) components of the pension system. The net outcome of post-crisis pension system modifications depends both on the magnitude of fully-funded contribution reduction, but also on the design of PAYG component and the way individual pension rights are accrued. These results indicate the rise in implicit liability of pension system in Slovakia to be higher than the reduction of the explicit liability caused by the pension system change and the lower rise of implicit liability in Poland and Latvia.