Professor Yi Junjian, a specially appointed professor at Peking University's Yenching Academy, an economics professor at the National School of Development, and a dual-appointed professor at the Institute for Global Health and Development, collaborated on a paper titled "Path Dependency in Physician Decisions." The paper was accepted for publication by the  Review of Economic Studies , one of the "big five" journals in economics, on September 24, 2023. The co-authors of this paper include Lawrence Jin from the National University of Singapore, Rui Tang from the Hong Kong University of Science and Technology, Han Ye from Lingnan University in Hong Kong, and Songfa Zhong from the National University of Singapore and New York University Abu Dhabi.

The paper focuses on path dependency in emergency department physicians' decision-making processes. It reveals a positive correlation between the treatment decisions made by physicians for current patients and those made for previous patients. The study indicates that this positive autocorrelation is more pronounced when there is greater uncertainty in the medical condition of the current patient, when observed characteristics are more similar to previous patients, and when physicians have less experience or are experiencing higher levels of fatigue.

Professor Yi Junjian currently holds the positions of Executive Editor at  Economics Quarterly and Associate Editor at the  Journal of Comparative Economics . His research findings have been published (or accepted for publication) in academic journals such as the  Journal of Political Economy ,  Review of Economic Studies ,  Management Science ,  Demography ,  Lancet , and  Proceedings of the National Academy of Sciences . His main research areas include labor and population economics, health economics, and development economics.

In early February 2023, Professor Yi Junjian also co-authored a paper titled "Multidimensional Premarital Investments with Imperfect Commitment," which was published in the  Journal of Political Economy . This study found that in regions with imbalanced gender ratios (more males), parents tend to increase labor supply and migration to enhance income and investment, while also increasing housing investment and reducing education investment.

Appendix 1: Link to the paper "Path Dependency in Physician Decisions": https://www.restud.com/path-dependency-in-physician-decisions/

Appendix 2: Previous coverage and links to papers: http://nsd.pku.edu.cn/sylm/xw/528679.htm

(Interpreted by Waverly Shi)