Interdisciplinarity and impact: Distinct effects of variety, balance and disparity

Jian Wang, Bart Thijs and Wolfgang Glänzel

No 475151, Working Papers of ECOOM - Centre for Research and Development Monitoring from KU Leuven, Faculty of Economics and Business (FEB), ECOOM - Centre for Research and Development Monitoring

Abstract: Interdisciplinary research is increasingly recognized as the solution to today’s challenging scientific and societal problems, but the relationship between interdisciplinary research and scientific impact is still unclear. This paper studies the relationship between interdisciplinarity and citations at the paper level. Different from previous literature compositing various aspects of interdisciplinarity into a single indicator, this paper uses factor analysis to uncover distinct aspects of interdisciplinarity and investigates their independent dynamics with scientific impact. Three uncovered factors correspond to variety, balance and disparity respectively. Subsequently, we estimate Poisson models with journal fixed effects and robust standard errors to investigate the relationship between these three factor and citations. We find that long-term (13-year) citations (1) increase at an increasing rate with variety, (2) decrease with balance, and (3) increase at a decreasing rate with disparity. Furthermore, interdisciplinarity also affects the process of citation accumulation: (1) although variety and disparity have positive effects on long-term citations, they have negative effects on short-term (3-year) citations, and (2) although balance has a negative effect on long-term citations, its negative effect is insignificant in the short run. These findings have important implications for interdisciplinarity research and science policy.

Keywords: interdisciplinarity; impact; citation delay; variety; balance; disparity; ECOOM-Biblio (search for similar items in EconPapers)
Date: 2014-12
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Published in FEB Research Report MSI_1422

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Persistent link: https://EconPapers.repec.org/RePEc:ete:ecoomp:475151

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