A two-sex nuptiality-mortality life table

Area of Science:

• Demography
• Mathematical Biology
• Sociology

Background:

• The "problem of the sexes" in demography arises from inconsistent male and female demographic rates.
• Reconciling these differing rates is crucial for accurate population modeling.

Purpose of the Study:

• To address the "problem of the sexes" using a two-sex nuptiality-mortality life table.
• To introduce a "rectangular" population standard for demographic analysis.
• To develop a standardization relationship for age-sex composition.

Main Methods:

• Development of a two-sex nuptiality-mortality life table.
• Introduction of a "rectangular" population as a demographic standard.
• Derivation of a standardization relationship (equation 9) to link population rates with age-sex composition.

Main Results:

• The proposed standardization relationship exhibits desirable properties and generates a realistic two-sex demographic model.
• Application to 1973 Swedish data demonstrates the model's utility.
• The total number of marriages in a two-sex population is not constrained by one-sex nuptiality-mortality tables.

Conclusions:

• The novel standardization approach effectively reconciles demographic inconsistencies between sexes.
• The model provides a more realistic representation of two-sex population dynamics.
• Findings challenge traditional assumptions about marriage rate limitations in demographic analysis.