Two large national surveys in 1988 and 1993 provide new evidence on tr
ends in family-size preferences in Thailand at a time when the Thai fe
rtility transition is reaching its conclusion. Although the average pr
eferred number of children has continued to decline, a resistant lower
bound of two children is found for the vast majority of respondents,
stemming, apparently, from a pervasive, although not inflexible, desir
e to have one chilli of each sex. Moreover, new evidence from birth-re
gistration data indicates that the decline in the total fertility rate
appears to have leveled off at about replacement level. These finding
s challenge the view that fertility in Thailand will continue to fall
well below replacement level, and contradict recently expressed alarmi
st predictions of population decline in the foreseeable future.