Tempo-Adjusted Period Parity Progression Measures, Fertility Postponement and Completed Cohort Fertility
By H. Kohler, José Antonio Ortega. 2002
168 citations recorded by the source corpus.
In this paper we introduce a new set of tempo-adjusted period parity progression measures in order to account for two distinct implications caused by delays in childbearing: tempo distortions imply an underestimation of the quantum of fertility in observed period data, and the fertility aging effect reduces higher parity births because the respective exposure is shifted to older ages when the probability of having another child is quite low. Our measures remove the former distortion and provide means to assess the latter aging effect. The measures therefore provide a unified toolkit of fertility indices that (a) facilitate the description and analysis of past period fertility trends in terms of synthetic cohort measures, and (b) allow the projection of the timing, level and distribution of cohort fertility conditional on a specific postponement scenario. Due to their explicit relation to cohort behavior, these measures extend and improve the existing adjustment of the total fertility rate. We apply these methods to Sweden from 1970 to 1999.
Subfields: Molecular Biology
View Paper: https://www.semanticscholar.org/paper/be1f0e671783541a01650467abe6daa267f1d445
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In Molecular Biology
Citations in the corpus
- Low fertility in Europe: causes implications and policy options. (2006, background): “…caused by the postponement of fertility and changes in the parity-composition of the population, have reduced the level of period fertility indicators below the associated level of cohort fertility (for discussion of this technical aspect, see Bongaarts and Feeney 1998; Kohler and Ortega 2002).”
- Fertility Decline in Russia in the Early and Mid 1990s: The Role of Economic Uncertainty and Labour Market Crises (2002, methodology): “The adjusted total fertility rate ( TF R� ) is calculated as TF R� = i TF Ri /(1 − ri ), where TF Ri is the total fertility rate of birth order i and ri is the annual increase in the mean age at birth of order i. Further extensions of the fertility adjustment include “variance effects” and also the ”