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A substantial shift in the composition of families and households in the US occurred during the 1970s. Using the Panel Study of Income Dynamics from 1968 to 1979 the authors identify sources of the change in aggregate distribution and examine year-to-year transitions among family types. This analysis provides a perspective that differs from cross-sectional and life-course comparisons. Calculations of net increments and decrements to each family type reveal the overall pattern of flow and the effect of family formations on the aggregate distribution of family types. New headships contributed most to shifts in the relative composition of family types but its impact declined over the decade. The results of examining the origin-destination transition matrices confirm general differences in transition rates by age and to a lesser extent by race and income. The transition rates themselves changed very little during the decade. (authors)
White et al. (Thu,) studied this question.
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