We question the received wisdom that birth limitation was absent among historical populations before the fertility transition of the late nineteenth-century. Using duration and panel models on family-level data, we find a causal, negative short-run effect of living standards on birth spacing in...

I first document that the introduction of the One Child Policy dramatically increased sex selection in certain regions, and that the Chinese government responded to this by allowing parents who had a daughter as their first child to try for a second child. Next, I show that the increase in...