Abortion Legalization and Life-Cycle Fertility
利用人口普查和生命统计数据，比较早期堕胎合法化州与其他州及队列女性的终身生育率，发现1970年代初的堕胎合法化导致生育率永久性下降，而非仅推迟生育，且主要体现为终身无子女女性比例上升。
The early-1970s abortion legalization led to a significant drop in fertility. We investigate whether this decline represented a delay in births or a permanent reduction in fertility. We combine Census and Vital Statistics data to compare the lifetime fertility of women born in early-legalizing states, whose peak childbearing years occurred in the early 1970s, to that of women from other states and cohorts. We find that much of the reduction was permanent, in that women did not compensate by having more children later, and that it largely reflects an increased share of women remaining childless throughout their fertile years.