Work and Health after Retirement: A Competing Risks Model with Semiparametric Unobserved Heterogeneity
比较了传统竞争风险模型与一种控制不可观测异质性相关性的半参数估计模型，分析退休后重返工作或健康变化的影响因素，发现异质性成分正相关但不显著，政策变量效应有所改变。
Competing risks models recognize that there may be more than one exit from a given state, but they make the strong assumption that there is no correlation between unobserved heterogeneity components in each state. Here, a competing risks model that uses a semiparametric method of estimation and controls for the correlation between unobserved heterogeneity components in each state is compared with a traditional competing risks model of exit from retirement. The unobservable heterogeneity components of the competing risks are insignificantly positively correlated and the effects of policy-relevant variables are changed somewhat. Copyright 1989 by MIT Press.