How Meaningful are Statements about the Desired Number of Additional Children? An Analysis of 1968 Pakistani Data

M. ALl Khan and I. Sirageldin
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M. ALl Khan: Johns Hopkins University, Baltimore(Md., USA)
I. Sirageldin: Johns Hopkins University, Baltimore(Md., USA)

The Pakistan Development Review, 1983, vol. 22, issue 1, 1-22

Abstract: In this paper we present a methodology for studying the desired number of additional children. Our methodology involves a generalization of our earlier work and an application of the estimator proposed by Heckman and the two-stage simultaneous Tobit estimator proposed by Nelson and Olson. Recent analyses of desired additional fertility have limited themselves to a dependent variable which is dichotomous, taking the value of one if the respondent wants additional children and of zero otherwise.l However, these studies ignore the information which is typically available. It is usual in most KAP surveys2 to follow up a respondent's response indicating his/her willingnessto have additional children by a further question as to their desired number. Any estimates based on reducing these responses to a single number are obviously inefficient. It is the object of this paper to provide estimates, based on 1968 Pakistani data, which are free from these difficulties.

Date: 1983
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