NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Beetles: Biased Promotions and Persistence of False Belief

George Akerlof, Pascal Michaillat

NBER Working Paper No. 23523
Issued in June 2017
NBER Program(s):Labor Studies Program, Productivity, Innovation, and Entrepreneurship Program

This paper develops a theory of promotion based on evaluations by the already promoted. The already promoted show some favoritism toward candidates for promotion with similar beliefs, just as beetles are more prone to eat the eggs of other species. With such egg-eating bias, false beliefs may not be eliminated by the promotion system. Our main application is to scientific revolutions: when tenured scientists show favoritism toward candidates for tenure with similar beliefs, science may not converge to the true paradigm. We extend the statistical concept of power to science: the power of the tenure test is the probability (absent any bias) of denying tenure to a scientist who adheres to the false paradigm, just as the power of any statistical test is the probability of rejecting a false null hypothesis. The power of the tenure test depends on the norms regarding the appropriate criteria to use in promotion and the empirical evidence available to apply these criteria. We find that the scientific fields at risk of being captured by false paradigms are those with low power. Another application is to hierarchical organizations: egg-eating bias can result in the capture of the top of organizations by the wrong-minded.

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Document Object Identifier (DOI): 10.3386/w23523

Published: George A. Akerlof & Pascal Michaillat, 2018. "Persistence of False Paradigms in Low-Power Sciences," Proceedings of the National Academy of Sciences, vol. 115 (52), pages 13228-13233.

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