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Table 2 Summary of the Gini index ( G ) and top-1% share ( f 1 % )

From: Inequality and cumulative advantage in science careers: a case study of high-impact journals

Journal setj Cohort entry years G( C ˜ ) f 1 % ( C ˜ ) G( N p ) f 1 % ( N p )
Economics 1970-1995 0.80 0.23 0.54 0.09
1970-1980 0.83 0.26 0.56 0.10
1980-1990 0.79 0.21 0.55 0.09
1990-1995 0.74 0.19 0.47 0.07
Nat./PNAS/Sci. 1970-1995 0.69 0.18 0.46 0.10
1970-1980 0.74 0.22 0.53 0.12
1980-1990 0.67 0.15 0.45 0.08
1990-1995 0.63 0.12 0.35 0.06
  1. Inequality measures are calculated from the distribution of citation impact, P( C ˜ ), and from the distribution of productivity, P( N p ), for the cohorts of scientists whose first publication occurred in the indicated time intervals.