Comparing two “thermometers”: Impact factors of 20 leading economic journals according to Journal Citation Reports and Scopus
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- Pislyakov, V. Scientometrics (2009) 79: 541. doi:10.1007/s11192-007-2016-1
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Impact factors for 20 journals ranked first by Journal Citation Reports (JCR) were compared with the same indicator calculated on the basis of citation data obtained from Scopus database. A significant discrepancy was observed as Scopus, though results differed from title to title, found in general more citations than listed in JCR. This also affected ranking of the journals. More thorough examination of two selected titles proved that the divergence resulted mainly from difference in coverage of two products, although other important factors also play their part.