heterogeneity of rearing costs and of enjoying children is introduced. Two major results: (i) excluding negative savings, fertility … decreases with pension contributions and increases with taxes; (ii) the introduction of fertility-dependent pensions may … strengthen heterogeneity in fertility. …

; renegotiation-proofness ; altruism ; fertility ; saving ; transfers ; attention ; pensions ; credit rationing …

critical for understanding the relationship between aggregate fertility and household savings. First, we document that parents … perceive children as an important source of old-age support and that, in partial equilibrium (PE), increased fertility lowers … aggregate fertility on household savings …