Interdisciplinary PhDs face barriers to top university placement within their disciplines

• URL: http://arxiv.org/abs/2503.21912v1
• Date: Thu, 27 Mar 2025 18:41:38 GMT
• Title: Interdisciplinary PhDs face barriers to top university placement within their disciplines
• Authors: Xiang Zheng, Anli Peng, Xi Hong, Chaoqun Ni,
• Abstract summary: Interdisciplinary research has gained prominence in addressing complex challenges, yet its impact on early academic careers remains unclear.<n>This study examines how interdisciplinarity during doctoral training influences faculty placement at top universities across diverse fields.<n>We find that faculty newly hired by top-ranked universities tend to be less interdisciplinary in their Ph.D. research.
• Score: 1.4624458429745082
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Interdisciplinary research has gained prominence in addressing complex challenges, yet its impact on early academic careers remains unclear. This study examines how interdisciplinarity during doctoral training influences faculty placement at top universities across diverse fields. Analyzing the career trajectories of 32,977 tenure-track faculty members who earned their Ph.D. degrees after 2005 and their initial faculty placement at 355 U.S. universities, we find that faculty newly hired by top-ranked universities tend to be less interdisciplinary in their Ph.D. research, particularly when they obtained Ph.D. from top universities and remain in their Ph.D. research field. Exploring the underlying reasons, we find that at top universities, the existing faculty's research is generally less interdisciplinary, and their academic priorities are more aligned with the Ph.D. research of less interdisciplinary new hires. This preference may disadvantage women Ph.D. graduates' faculty placement, who exhibit higher interdisciplinarity on average. Furthermore, we show that newly hired faculty with greater interdisciplinarity, when placed at top universities, tend to achieve higher long-term research productivity. This suggests a potential loss in knowledge production and innovation if top institutions continue to undervalue interdisciplinary new hires. These findings highlight structural barriers in faculty hiring and raise concerns about the long-term consequences of prioritizing disciplinary specialization over interdisciplinary expertise.

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