Competitive arenas in science. The right-skewed distributions of scientist longevity L and productivity are the starting point for understanding the skewed success distributions in science. Panels A (Economics) and B (Nat./PNAS/Sci.) address censoring bias in the longevity distributions by considering separately the cohorts of scientists who entered the Nat./PNAS/Sci. arena in the indicated time window. Panel C (Nat./PNAS/Sci.) shows the unconditional aggregate longevity distribution. Panels D/E/F show , the complementary cumulative distribution function (CCDF) of total publications . Panels D/E are analogs of panels A/B, showing the fixed cohorts of researchers who entered the respective journal arena with their first publication in the indicated time window. Panel F shows the distributions conditioned on L, which indicate that even within the set of ‘iron horse’ researchers with longevity the distribution is still extremely broad. To guide the eye and emphasize the curvature in , which is not consistent with a power-law distribution, we plotted a curve proportional to .