We investigate welfare and aggregate implications of a pay as you go (PAYG) social security system in a dynastic framework in which agents have self-control problems. The presence of these two additional factors at the same time affects individuals’ intertemporal decision problems in two...

The sustainability of a defined benefit pay-as-you-go (DBPAYG) pension system is investigated in the context of an overlapping-generations model of endogenous fertility with heterogeneous agents. The model places particular emphasis on the time costs of child rearing. It illustrates the...