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Cross‐affiliation collaboration and power laws for research output of institutions: Evidence and theory from top three finance journals

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  • Hui Dong
  • Dan Luo
  • Xudong Zeng
  • Zhentao Zou

Abstract

Cross‐affiliation emerges as a new and fast‐developing means to promote collaboration in financial research. We find that the average number of affiliations reported per author in the top‐three finance journals increases steadily from 1.1 to 1.3 from 1995 to 2016. Scale‐free power laws characterize the resulting highly‐skewed distributions of top finance journal publications of worldwide institutions. We propose an explanation of the scale‐invariance, based on a network model featuring nonlinear growth and linear preferential attachment. The model indicates that success‐breeds‐success engenders 87% of total publications and hence the dispersion in research output, while accelerated growth of collaboration reduces the heterogeneity.

Suggested Citation

  • Hui Dong & Dan Luo & Xudong Zeng & Zhentao Zou, 2023. "Cross‐affiliation collaboration and power laws for research output of institutions: Evidence and theory from top three finance journals," International Studies of Economics, John Wiley & Sons, vol. 18(4), pages 502-526, December.
    • Handle: RePEc:wly:intsec:v:18:y:2023:i:4:p:502-526
    DOI: 10.1002/ise3.52
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    References listed on IDEAS

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