Key points are not available for this paper at this time.
The Analysis of Family Budgets. By S. J. Prais and H. S. Houthakker. Second Impression, Abridged. C.U.P., 1971. xxix, 199 p. 914″. £3. (University of Cambridge, Department of Applied Economics, Monograph 4.)
Nicholson et al. (Mon,) studied this question.