Fig. 1: Composition and dynamics of the US professoriate by doctoral training.
From: Quantifying hierarchy and dynamics in US faculty hiring and retention
a, Degrees of n = 295,089 US faculty by domain, and for academia overall, separated by non-doctoral degrees (solid bars), US doctorates (open bars) and non-US doctorates (hatched bars). b, Continent of doctorate for n = 31,845 faculty with non-US doctorates by domain. Within the Europe and North America bars, darkened regions correspond to faculty from the United Kingdom and Canada, respectively. c,d, Ratios of average annual attrition risks among faculty with doctorates from Canada and the United Kingdom (c) (n = 11,156), and from all countries other than Canada, the United Kingdom and the United States (d) (n = 20,689), versus all US-trained faculty, for each field (colours), domain (grey) and academia (blue), on logarithmic axes. Circles, significantly different from 1.0, χ2 test, Benjamini–Hochberg-corrected P < 0.05; crosses, not significant.
