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...

A two stage bargaining model is developed to describe how fertility decisions are made in a strategic family setting. Given the assumption that family contracts are incomplete and cannot be used to enforce optimal behavior, it is shown that investments in children (i.e. the fertility rate) may...