Title: Marriage squeeze and two-sex linear population model.

POPLINE Document Number: 101457

Author(s):

Li N
Feldman MW

Source citation:

CHINESE JOURNAL OF POPULATION SCIENCE, 1994;6(3):303-10.

Abstract:

A two-sex linear model is described for expressing the decline in age-specific female fertility due to difficulty in becoming married because of a shortage of men. The model is used to explain the standard state and the extent of deviation from the standard state to cause a marriage squeeze. The conclusion is that the two-sex linear model does not describe the dynamic process correctly; a nonlinear model with appropriate marriage functions should be used when a sex ratio anomaly causes a marriage squeeze. The model in this analysis is discrete and assumes that the age-specific preservation rates, percentage of females born to mothers of the "ith" age group, and age-specific fertility rates among males and females do not change through time. The male fertility rate of each age group is zero and no migration occurs. The analysis shows that within 50 years or a life cycle the sex ratio of the "ith" age group will deviate from the stable state sex ratio by no more than the asymptotic sex ratio at birth minus the minimum sex ratio among children born to mothers of the "ith" age group, regardless of the intensity of the disturbance; this would be less than the state sex ratio times 0.0026.

Keywords:

China
Theoretical Studies
Models, Theoretical
Population Theory
Marriage Patterns
Age Factors
Research Methodology
Developing Countries
Asia, Eastern
Asia
Demography
Social Sciences
Marriage
Nuptiality
Population Characteristics
Demographic Factors
Population