cohort trend

cohort trend

A change in the incidence of a particular condition among persons with a shared and continued temporal experience—e.g., year of birth, marriage, etc.
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Project B may revolutionise the way postponement is seen: if the cohort trend hypothesis is found to be true, the assumption that postponement has a positive effect on offspring outcomes at the individual level will be confirmed.
For example, since we know that period effects and age effects (see below) are zero for children 13 and older, we can infer from figure 1 that there has been a sizeable cohort trend in girls' enrolment, which may have resulted in higher likelihood of later cohorts to be enrolled.
jt] stands, in turn, for average weekly hours, average annual weeks, and average annual hours of market work of women in age group j in survey year t, and [Mathematical Expression Omitted] is a cohort trend.
The estimated cohort trends for Models 1 and 3, reproduced in Table 7, show that controlling for education and enrollment dramatically reduces the estimated cohort trend.
t] represents a cohort trend, Gt is the proportionate change in real GNP, [Z.
However, in order to make projections of future retirement saving and its adequacy, it is critical to have an appreciation of the underlying cohort trends relating to employment, earnings, and saving in various forms; simply extrapolating current saving outcomes may not be appropriate.
Our approach is inspired by that of a similar analysis, which found that the proportion of births that occurred outside of marriage increased to a greater degree than the proportion of women who had a nonmarital birth (source: Hoffman SD and Foster EM, Nonmarital births and single mothers: cohort trends in the dynamics of nonmarital childbearing, History of the Family, 1997, 2(3):255-275).
Similar birth cohort trends in the age of initiation of illegal drug use have been observed in surveys in the USA (11) and Australia, (12) some of which used data collected across time rather than relying solely on retrospective reports.
The respondent data on marital, family, and career echoes the civilian cohort trends only for the last cohort.
I include a quadratic in age and use state-specific cohort trends to address concerns that region of birth interacted with cohort may not adequately control for state-specific factors that are smoothly changing over time.
To demonstrate how age group, period, and cohort membership influenced generalized social spending orientations, we present a simple tabular presentation of age, period, and cohort trends for the three spending domains (see Alwin 2003; Alwin and Scott 1996).
Although it is impossible to conjecture with any certainty about future levels of fertility, projections can be made based on past cross-sectional and cohort trends.