| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w15151 |
| 来源ID | Working Paper 15151 |
| Seam Bias, Multiple-State, Multiple-Spell Duration Models and the Employment Dynamics of Disadvantaged Women | |
| John C. Ham; Xianghong Li; Lara Shore-Sheppard | |
| 发表日期 | 2009-07-09 |
| 出版年 | 2009 |
| 语种 | 英语 |
| 摘要 | Panel surveys generally suffer from "seam bias"--too few transitions observed within reference periods and too many reported between interviews. Seam bias is likely to affect duration models severely since both the start date and the end date of a spell may be misreported. In this paper we examine the employment dynamics of disadvantaged single mothers in the Survey of Income and Program Participation (SIPP) while correcting for seam bias in reported employment status. We develop parametric misreporting models for use in multi-state, multi-spell duration analysis; the models are identified if misreporting parameters are the same for fresh and left-censored spells of the same type. We extend these models to allow misreporting to depend on individual characteristics and for a certain fraction of the sample never to misreport. These extensions are informative about misreporting, but do not affect estimates of the hazard functions. We compare our results to two approaches used previously: i) using only data on the last month of reference periods and ii) adding a dummy variable for the last month of the reference periods. We find that there are important differences between our estimates and those obtained from ii), and very important differences between our estimates and those obtained from i). Finally, we also consider three alternative models of misreporting and are able to reject them based on aggregates of our micro data. |
| 主题 | Econometrics ; Estimation Methods ; Health, Education, and Welfare ; Poverty and Wellbeing ; Labor Economics ; Labor Supply and Demand |
| URL | https://www.nber.org/papers/w15151 |
| 来源智库 | National Bureau of Economic Research (United States) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/572826 |
| 推荐引用方式 GB/T 7714 | John C. Ham,Xianghong Li,Lara Shore-Sheppard. Seam Bias, Multiple-State, Multiple-Spell Duration Models and the Employment Dynamics of Disadvantaged Women. 2009. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| w15151.pdf（331KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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