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Intermediation of Units These slides expand the article How journal rankings can suppress interdisciplinary research. A comparison between innovation studies.

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Presentation on theme: "Intermediation of Units These slides expand the article How journal rankings can suppress interdisciplinary research. A comparison between innovation studies."— Presentation transcript:

1 Intermediation of Units These slides expand the article How journal rankings can suppress interdisciplinary research. A comparison between innovation studies and business & management Available at: www.interdisciplinaryscience.net http://www.sussex.ac.uk/Users/ir28/IDR/Rafols2011-Rankings&IDR.pdf Ismael Rafols 1, Loet Leydesdorff 2, Alice O’Hare 1, Paul Nightingale 1 and Andy Stirling 1 1 SPRU —Science and Technology Policy Research, University of Sussex, i.rafols@sussex.ac.uki.rafols@sussex.ac.uk 2 Amsterdam School of Communication Research (ASCoR), University of Amsterdam, loet@leydesdorff.net loet@leydesdorff.net

2 Edinburgh ISSTI Sussex Manchester MIoIR Imperial ISSTI Warwick Business School London Business School SPRU # pubs with journals included11414198218287290 % pubs with journals included90%95%91%92%73%84% Journals of publications Clustering Coefficient0.1280.0980.0750.1890.1650.202 Std Error0.06% 0.04% Average similarity0.0280.0340.0360.0500.0450.060 Std Error0.06%0.07% 0.04% # refs with journals included13402134150548409327 % refs with journals included21%29%28%42%56% Journals of references Clustering Coefficient0.1780.1820.1660.2360.2210.235 Std Error0.05%0.04%0.05%0.04% Average similarity0.0440.0500.0580.0660.0650.068 Std Error0.04%0.05% 0.04% # citations with journals included140424237651603917 % citations with journals included47%58%65%57%56%61% Journals of citations Clustering Coefficient0.1200.0960.0740.1570.1670.183 Std Error0.06%0.05%0.06%0.04% 0.03% Average similarity0.0290.0340.0370.0460.0440.055 Std Error0.05%0.06% 0.04%0.03% Indicators of intermediation Note: Only a sub-set of 391 journals was used in these journal maps, which is reflected in the values for numbers and percentages of “publications with journals included”.

3 Intermediation as average Clustering Coefficient

4 Intermediation as average similarity

5 Heat-map of entire journal sub-set (391 journals), based on the cited similarities between journals (WoS 2009)

6 Journals of Unit’s Publication Proportion of publications per journal Note: Sum of node areas not consistent between maps

7 ISSTI Journals of Publications Normalised to total number publications

8 SPRU Journals of Publications Normalised to total number publications

9 MIoIR Journals of Publications Normalised to total number publications

10 Imperial Journals of Publications Normalised to total number publications

11 WBS Journals of Publications Normalised to total number publications

12 LBS Journals of Publications Normalised to total number publications

13 Journals of Unit’s References Proportion of references per journal

14 ISSTI Journals of References Normalised to total number references

15 SPRU Journals of References Normalised to total number references

16 MIoIR Journals of References Normalised to total number references

17 Imperial Journals of References Normalised to total number references

18 WBS Journals of References Normalised to total number references

19 LBS Journals of References Normalised to total number references

20 Journals of Unit’s citations Proportion of citations per journal

21 ISSTI Journals of citations Normalised to total number citations

22 SPRU Journals of citations Normalised to total number citations

23 MIoIR Journals of citations Normalised to total number citations

24 Imperial Journals of citations Normalised to total number citations

25 WBS Journals of citations Normalised to total number citations

26 LBS Journals of citations Normalised to total number citations


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