Joyce T, Grossman M
Baruch College, New York city 10003.
J Health Econ. 1990 Nov;9(3):273-88. doi: 10.1016/0167-6296(90)90047-7.
We use a vector autoregression to examine the dynamic relationship between the race-specific percentage of pregnancies terminated by induced abortion and the race-specific percentage of low-birthweight births in New York City. With monthly data beginning in 1972, we find that induced abortion explains low birthweight for blacks, but not for whites. There is no evidence of feedback from low birthweight to induced abortion. The findings suggest that unanticipated decreases in the percentage of pregnancies terminated by induced abortion would worsen birth outcomes among blacks in New York City.
我们使用向量自回归模型来研究纽约市人工流产终止妊娠的种族特定百分比与低体重儿出生的种族特定百分比之间的动态关系。利用始于1972年的月度数据，我们发现人工流产是黑人低体重儿出生的一个影响因素，但对白人则不然。没有证据表明低体重儿出生会反馈影响人工流产。研究结果表明，人工流产终止妊娠百分比的意外下降会使纽约市黑人的出生结局恶化。
