https://www.sciencedaily.com/releases/2018/12/181210150610.htm
‘Dropout’ rate for academic scientists has risen sharply in past 50 years, study finds
Summary:
An analysis has found that half the people pursuing scientific careers at institutions of higher education will depart the field after five years – a sharp contrast compared to 50 years ago
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Maybe folks are being forced/lured to work in the industry.