搜索结果: 1-4 共查到“人口统计学 heterogeneity”相关记录4条 . 查询时间(0.078 秒)
An empirical analysis of the importance of controlling for unobserved heterogeneity when estimating the income-mortality gradient
income mortality proportional hazard model unobserved heterogeneity
2014/11/27
Background: Statistical theory predicts that failing to control for unobserved heterogeneity in a Gompertz mortality risk model attenuates the estimated income-mortality gradient toward zero.Objective...
Unobserved population heterogeneity: A review of formal relationships
gamma-distributed frailty Gompertz-Makeham force of mortality relative-risk models unobserved heterogeneity
2014/11/27
Background: Survival models accounting for unobserved heterogeneity (frailty models) play an important role in mortality research, yet there is no article that concisely summarizes useful relationship...
Constant global population with demographic heterogeneity
average age Cauchy-Schwarz inequality constant population heterogeneity life expectancy migration pensions population projection stationary population zero population growth
2008/12/16
To understand better a possible future constant global population that is demographically heterogeneous, this paper analyzes several models. Classical theory of stationary populations generally fails ...
Measuring Local Heterogeneity with 1990 U.S. Census Data
census heterogeneity small area estimation census adjustment
2008/11/28
A sample covering 204,394 blocks from the 1990 U.S. Census permits measurement of residual heterogeneity from local area to local area after controlling by stratification for demographic characteristi...