Lotka’s law is a power law for the frequency of scholarly publications. We show that Lotka’s law cannot be dismissed after considering a massive sample of the number of publications of Brazilian researchers in journals listed on the SCImago Journal Rank and the Journal Citation Reports. For the SCImago Journal Rank, we found a power law with the Pareto exponent of 0.4 beyond the threshold of 50 papers. This means computing the ‘average number of publications’ of either a researcher or a discipline is of no practical significance.
PerlinMSantosATakeyoshiI, et al. The Brazilian scientific output published in journals: a study based on a large CV database. J Informetr2017; 11(1): 18–31.
2.
LotkaAJ.The frequency distribution of scientific productivity. J Wash Acad Sci1926; 16(12): 317–324.
3.
ChungHKCoxRAK. Patterns of productivity in the finance literature: a study of the bibliometric distributions. J Financ1990; 45(1): 301–309.
4.
Ruiz-CastilloJCostasR.The skewness of scientific productivity. J Informetr2014; 8(4): 917–934.
5.
CoileRC.Lotka’s frequency distribution of scientific productivity. J Am Soc Inform Sci1977; 28(6): 366–370.
6.
RorstadKAksnesDW.Publication rate expressed by age, gender and academic position: a large-scale analysis of Norwegian academic staff. J Informetr2015; 9(2): 317–333.
7.
GabaixX.Power laws in economics: an introduction. J Econ Perspect2016; 30(1): 185–206.
8.
KawamuraMThomasCDTsurumotoA, et al. Lotka’s law and productivity index of authors in a scientific journal. J Oral Sci2000; 42(2): 75–78.