Scaling Phenomena in the Growth Dynamics of Scientific Output

Details Scaling Phenomena in the Growth Dynamics of Scientific Output Scaling Phenomena in the Growth Dynamics of Scientific Output

2005-02-15

arxiv.org/abs/physics/0502083v1

Physics

Physics and Society

Scientific paper

We analyze a set of three databases at different levels of aggregation (i) a database of approximately $10^6$ publications of 247 countries in the period between 1980--2001. (ii) A database of 508 academic institutions from European Union (EU) and 408 institutes from USA in the 11 year period between during 1991--2001. (iii) A database comprising of 2330 Flemish authors in the period 1980--2000. At all levels of aggregation we find that the mean annual growth rates of publications is independent of the number of publications of the various units involved. We also find that the standard deviation of the distribution of annual growth rates decays with the number of publications as a power law with exponent $\approx 0.3$. These findings are consistent with those of recent studies of systems such as the size of R&D funding budgets of countries, the research publication volumes of US universities, and the size of business firms.

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