Vietnam has registered a dramatic decline in fertility during the last deca
des. While the causes of such a sustained decline are still not well docume
nted, many observers believe that government policies adopted in the 1980s
have contributed to lower fertility. This article focuses on the implicatio
ns of the Doi Moi program of market reforms on fertility, taking into accou
nt the influences of migration and population policy. The analysis is based
on a sequential logit model of birth histories of ever married women inter
viewed in Vietnam in 1997. The results show a substantial decline, in ferti
lity since the Doi Moi program was introduced. The disruptive effects of mi
gration are less pronounced, although migrants generally exhibit lower chil
dbearing rates, and a somewhat different pattern of parity progression. We
argue that the economic reforms of 1986, and the two-child policy initiated
two years later, have reinforced Vietnamese women's desire for smaller fam
ilies.