[论文解读] Scientific Talent Leaks Out of Funding Gaps

Wei Yang Tham, Joseph Staudt+2 more|arXiv (Cornell University)|Feb 11, 2024

Health and Medical Research Impacts被引用 4

一句话总结

本研究利用美国人口普查税表记录与美国国立卫生研究院（NIH）拨款数据，表明拨款延迟超过30天会显著扰乱科研人员队伍：在仅获得一项R01拨款的实验室中，研究人员非美国就业的可能性高出40%，全国范围内约5%的非就业现象可归因于拨款缺口。研究人员，尤其是训练人员，其收入和发表率均出现更大幅度下滑，凸显了学术科研拨款体系的系统性不稳定性。

ABSTRACT

We study how delays in NIH grant funding affect the career outcomes of research personnel. Using comprehensive earnings and tax records linked to university transaction data along with a difference-in-differences design, we find that a funding interruption of more than 30 days has a substantial effect on job placements for personnel who work in labs with a single NIH R01 research grant, including a 3 percentage point (40%) increase in the probability of not working in the US. Incorporating information from the full 2020 Decennial Census and data on publications, we find that about half of those induced into nonemployment appear to permanently leave the US and are 90% less likely to publish in a given year, with even larger impacts for trainees (postdocs and graduate students). Among personnel who continue to work in the US, we find that interrupted personnel earn 20% less than their continuously-funded peers, with the largest declines concentrated among trainees and other non-faculty personnel (such as staff and undergraduates). Overall, funding delays account for about 5% of US nonemployment in our data, indicating that they have a meaningful effect on the scientific labor force at the national level.

研究动机与目标

• 评估NIH R01拨款拨付延迟对科研人员职业轨迹的影响。
• 量化拨款中断对科学家就业地点、收入和发表活动的影响。
• 评估拨款不稳定性——尤其是依赖单一R01拨款的实验室——是否导致人才流失和劳动力市场动荡。
• 探讨年度预算周期和拨款不确定性对科研人力资本保留的更广泛影响。

提出的方法

• 利用美国人口普查局的关联收入与税表记录，结合大学层面的NIH R01拨款交易数据。
• 采用双重差分设计，比较拨款延迟实验室与持续获得拨款实验室的人员表现。
• 结合2020年人口普查数据与发表记录，评估长期结果，如国际移民与科研产出。
• 分别分析不同人员类型（如博士后、研究生、技术人员、教师）的拨款延迟影响。
• 估算拨款延迟对非就业与劳动力市场结果的全国范围影响。
• 控制国籍、培训水平和机构特征等混杂因素。

Figure 1: Each point represents a Fiscal Year (FY) from FY1998 to FY2018, and shows the average date on which NIH grants that FY were funded, plotted against the month the US federal budget was passed for that FY. “Ongoing” grants were already approved in previous FYs, while “New” and “Renewed” gran

实验结果

研究问题

• RQ1 拨款延迟超过30天如何影响科研人员离开美国劳动力市场的概率？
• RQ2 拨款中断对受影响研究人员的收入和发表率有何影响？
• RQ3 拨款延迟的影响在不同类型的科研人员（如训练人员与教师）之间有何差异？
• RQ4 拨款延迟在多大程度上导致了全国范围内的科研人员非就业现象？
• RQ5 导致拨款不稳定性引发的劳动力市场动荡的内在机制是什么？

主要发现

• 在仅获得一项R01拨款的实验室中，拨款中断超过30天会使研究人员在美国非就业的概率提高3个百分点（相对增加40%）。
• 约一半因拨款中断而进入非就业状态的人员永久离开美国，且其在当年发表论文的可能性降低90%。
• 对于仍留在美国的人员，拨款中断者比持续获得拨款的同行收入低20%，其中训练人员和非教师员工的收入降幅最大。
• 拨款延迟导致研究队伍中约5%的非就业现象，表明其具有全国范围的显著影响。
• 负面影响在训练人员（博士后和研究生）中最为严重，其收入和发表产出的下滑幅度更大。
• 研究结果表明，拨款不稳定性——尤其是单笔拨款依赖型实验室——对科研人才保留与科研产出具有重大且可量化的负面影响。

Figure 2: This diagram shows the process of linking R01 grants to personnel and their labor market outcomes, starting with NIH ExPORTER data at the top and ending with tax and unemployment insurance records stored at the US Census Bureau.