This paper attempts to forecast the change in adolescent childbearing among New York City residents following a ban on legalized abortion. With monthly data on the number of births to white and black adolescents from January, 1963 to December, 1987 we used an interrupted time-series analysis to...

We use a pooled time-series cross-section of live births in New York City between 1980 and 1989 to investigate the dramatic rise in low birthweight, especially among Blacks, that occurred in the mid 1980s. After controlling for other risk factors, we estimate that the number of excess low...