Too Many Ph.D. Graduates or Too Few Academic Job Openings: The Basic Reproductive Number R[subscript 0] in Academia
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esd-wp-2013-06.pdf
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480.72 KB
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Adobe PDF
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db848d34823588660943e51a9077cb8b
Author(s)
Larson, Richard Charles
Ghaffarzadegan, Navid
Xue, Yi
Date Issued
March 2013
Publisher
Massachusetts Institute of Technology. Engineering Systems Division
Series/Report no.
ESD Working Papers;ESD-WP-2013-06
Abstract
The academic job market has become increasingly competitive for Ph.D. graduates. In this Note we ask the basic question of “Are we producing more Ph.D.’s than needed?” We take a systems approach and offer a “birth rate” perspective: professors graduate Ph.D.’s who later become professors themselves, an analog to how a population grows. We show that the reproduction rate in academia is very high. For example, in engineering, a professor in the U.S. graduates 7.8 new Ph.D.’s during his/her whole career on average, and only one of these graduates can replace the professor’s position. This implies that in a steady state, only 12.8% of Ph.D. graduates can attain academic positions in the U.S. The key insight is that the system in many places is saturated, far beyond capacity to absorb new Ph.D.’s in academia at the rates that they are being produced. Based on the analysis, we discuss policy implications.
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