Latent Work Disability and Reporting Bias
利用健康与退休研究数据构建真实残疾指数，发现非工作者（尤其是非工作女性、高中辍学者、非白人和前蓝领工人）倾向于高估工作限制，而前白领工人则不会；使用有偏的残疾测量会高估残疾对非工作的影响、低估收入的影响。
A measure of true disability is constructed as a continuous index of unobserved work limitation using information from the Health and Retirement Study. Estimates from a simultaneous model of work participation, disability, and income flows suggest that nonworkers tend to substantially overreport limitation, with overreporting most prevalent among nonworking women, high school dropouts, nonwhites, and former blue collar workers. Former white collar workers are found unlikely to overreport limitation. Use of a biased disability measure in the model leads to an upward-biased estimate of the effect of limitation on nonwork and to a downward-biased estimate of the effect of income.