Influence and Information in Team Decisions: Evidence from Medical Residency
研究医学住院医师团队决策，发现资历较深的学员在决策中影响力更大，且学员效应差异在培训后仍存在，支持经验学习和信息聚合机制。
I study team decisions among physician trainees. Exploiting a discontinuity in team roles across trainee tenure, I find evidence that teams alter decision-making, concentrating influence in the hands of senior trainees. I also demonstrate little convergence in variation of trainee effects despite intensive training. This general pattern of trainee effects on team decision-making exists in all types of decisions and settings that I examine. In analyses evaluating mechanisms behind this pattern, I find support for the idea that significant experiential learning occurs during training and that teams place more weight on judgments of senior trainees in order to aggregate information.