Second Transition Features Checker
Count which of the four classic second-demographic-transition markers are present (below-replacement fertility, postponed parenthood, rising union instability or cohabitation, household diversification) and label the profile full at four markers, partial at two or three, absent otherwise.
Description
Count which of the four classic second-demographic-transition markers are present (below-replacement fertility, postponed parenthood, rising union instability or cohabitation, household diversification) and label the profile full at four markers, partial at two or three, absent otherwise.
Count which of the four classic second-demographic-transition markers are present (below-replacement fertility, postponed parenthood, rising union instability or cohabitation, household diversification) and label the profile full at four markers, partial at two or three, absent otherwise.1
When to use Second Transition Features Checker
Use this classifier as a concise description of the supplied demographic indicators, with the tool's thresholds kept visible in reports.
- Sub-replacement TFR
- Period fertility is persistently below replacement (about 2.1 children per woman).
- Postponement
- Mean age at motherhood and at first union is rising.
- Union instability
- Divorce and consensual unions are rising markedly.
- Household diversity
- Living arrangements have diversified beyond the married-couple household with children.
How the method works
- Markers
- Number of SDT markers present.
- Profile
- Overall second-transition profile label.
Limitations and assumptions
Transition stages are descriptive models, not universal laws or causal forecasts. Countries can follow different paths, reverse temporarily, or combine characteristics assigned to several stages.
Alternative or Complementary measures
Complement the stage label with the underlying time series for fertility, mortality, age structure, and household behavior. Trends show mixed or reversing patterns that a single category cannot express.
References
-
Demographic transition — Wikipedia contributors
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