, Volume 75, Issue 1, pp 163–174

A new methodology for ranking scientific institutions


DOI: 10.1007/s11192-007-1853-2

Cite this article as:
Molinari, JF. & Molinari, A. Scientometrics (2008) 75: 163. doi:10.1007/s11192-007-1853-2


We extend the pioneering work of J. E. Hirsch, the inventor of the h-index, by proposing a simple and seemingly robust approach for comparing the scientific productivity and visibility of institutions. Our main findings are that i) while the h-index is a sensible criterion for comparing scientists within a given field, it does not directly extend to rank institutions of disparate sizes and journals, ii) however, the h-index, which always increases with paper population, has an universal growth rate for large numbers of papers; iii) thus the h-index of a large population of papers can be decomposed into the product of an impact index and a factor depending on the population size, iv) as a complement to the h-index, this new impact index provides an interesting way to compare the scientific production of institutions (universities, laboratories or journals).

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Laboratory of Mechanics and TechnologyEcole Normale Supérieure de CachanParisFrance
  2. 2.Laboratory of Physics and Mechanics of MaterialsUniversité Paul VerlaineMetzFrance

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