February 01 2009 Estimating the Variance of Wages in the Presence of Selection and Unobserved Heterogeneity Stacey H Chen Stacey H Chen Search for other works by this author on: This Site Google Scholar Author and Article Information Stacey H Chen Online ISSN: 1530-9142 Print ISSN: 0034-6535 Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology2009 The Review of Economics and Statistics (2009) 91 (1): 227. https://doi.org/10.1162/rest.91.1.227 Connected Content This is a correction to: Estimating the Variance of Wages in the Presence of Selection and Unobserved Heterogeneity Cite Icon Cite Permissions Share Icon Share Facebook Twitter LinkedIn Email Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Search Site Citation Stacey H Chen; Estimating the Variance of Wages in the Presence of Selection and Unobserved Heterogeneity. The Review of Economics and Statistics 2009; 91 (1): 227. doi: https://doi.org/10.1162/rest.91.1.227 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThe Review of Economics and Statistics Search Advanced Search View Original Article Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology2009 Article PDF first page preview Close Modal You do not currently have access to this content.

Identification of potential wage distributions by education is important to the study of the causal links between education, inequality, and uncertainty. Potential wage inequality within an educational group (that is, the variance in wages if all workers had the same education) exceeds the observed statistics because self-selected education truncates wage distributions. Decomposing potential wage inequality into heterogeneity (known to the agent making the educational choice) and uncertainty (unknown to the agent) suggests that wage uncertainty does not necessarily rise with education. It is unobserved heterogeneity, not uncertainty, that explains the observed relationship between college graduation and higher wage inequality.

We use the draft lottery to construct instrumental variables (IV) estimates of the impact of Vietnam-era military service on veterans' Social Security (SSA) earnings through 2007. We also use SSA data to construct IV estimates for employment (as measured by an indicator for positive earnings) and disability status (as measured by an indicator for social security disability program application). New findings for recent years show surprisingly rapid convergence in veteran and nonveteran earnings: by the early 1990s, there was no longer a substantial Vietnam-era conscription penalty. The IV estimates also show no effect on employment or disability rates.

The Impact of Unexpected Maternal Death on Education: First Evidence from Three National Administrative Data Links by Stacey H. Chen, Yen-Chien Chen and Jin-Tan Liu. Published in volume 99, issue 2, pages 149-53 of American Economic Review, May 2009

We use the medical specialties of physician-patients with advanced cancer to study the role of knowledge versus networks in treatment choices and patient survival by matching comparable patients with doctors and admission periods to control unobserved doctor quality. Physician-patients are less likely to have surgery, radiation, or checkups and more likely to receive targeted therapy, spend more on drugs, enjoy a higher survival rate, and spend less on coinsurance than nonphysician-patients. Knowledge mechanisms play a crucial role because the network effect explains some, but not all, patterns. For less informed physician-patients, possessing a network is equivalent to reducing medical knowledge.