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A rationale for the Hirsch‐index rank‐order distribution and a comparison with the impact factor rank‐order distribution

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  • Leo Egghe

Abstract

We present a rationale for the Hirsch‐index rank‐order distribution and prove that it is a power law (hence a straight line in the log–log scale). This is confirmed by experimental data of Pyykkö and by data produced in this article on 206 mathematics journals. This distribution is of a completely different nature than the impact factor (IF) rank‐order distribution which (as proved in a previous article) is S‐shaped. This is also confirmed by our example. Only in the log–log scale of the h‐index distribution do we notice a concave deviation of the straight line for higher ranks. This phenomenon is discussed.

Suggested Citation

  • Leo Egghe, 2009. "A rationale for the Hirsch‐index rank‐order distribution and a comparison with the impact factor rank‐order distribution," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 60(10), pages 2142-2144, October.
    • Handle: RePEc:bla:jamist:v:60:y:2009:i:10:p:2142-2144
    DOI: 10.1002/asi.21121
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