Quantifying the structure of co-authorships of Filipino physics researchers
Quantifying the structure of co-authorships of Filipino physics researchers
FEATURED PUBLICATION:
K.M.A. Aguana and R.C. Batac, Emergence of power-law statistics in the co-authorship networks of Philippine physics researchers, Scientometrics 131, 665-685, https://doi.org/10.1007/s11192-025-05530-9 (2026).
A 2026 study by Kiona Moria A. Aguana and Rene C. Batac, published in Scientometrics, dives into the social fabric of Philippine physics to understand how local researchers connect, collaborate, and grow. By mapping the co-authorship networks of Filipino physicists, the researchers revealed that the community is not just a random collection of scientists, but a highly structured system that follows universal mathematical laws.
The study found that the growth of these collaboration networks is governed by power-law statistics, a phenomenon often seen in the growth of the internet or social media platforms. In this preferential attachment model, often called the "rich-get-richer" phenomenon or the "Matthew effect", established researchers with many existing connections are more likely to attract new collaborators. This leads to the emergence of hubs: highly influential scientists who act as the topological center of the Philippine physics community, bridging different institutions and sub-disciplines.
Cumulative data from 1985 up to 2000 [red squares] and onwards [other symbols and colors] show robust and nearly universal statistics, characteristic of complex systems. (A) The distribution of the number of co-authors collapse under a Pareto distribution, a power-law distribution with negative exponent of 2. (B) The same data show regimes following Zipf's law, wherein the no. of co-authors vs. the rank follows a power-law with negative exponent of 1.
Starting with 1985 and up to 2000, the distributions of the number of co-authors of individual researchers begin to follow the Pareto distributions, which are power-law trends with decaying exponents equal to 2. This result is also equivalent to the recovery of Zipf's law rank-size plots, wherein the plot of the number of co-authors versus the ranking of the researcher (rank 1 corresponds to the researcher with the most co-authors) leads to power-law trends of decaying exponent equal to 1. Cumulative data after 2000 produces the same Pareto distributions and more pronounced Zipf's law regimes.
The work therefore demonstrates that, even in a relatively small and young research community, the underlying complex mechanisms governing most human interactions are still at play. More importantly, the work may provide important insights related to the future of Philippine physics collaborations. For example, understanding these dynamics allows policymakers and funding agencies to design interventions that encourage more diverse cross-pollination between established experts and the next generation of researchers. As these co-authorship networks continue to expand and tighten, they form a robust foundation that ensures Philippine physics remains vibrant, collaborative, and globally competitive.◼