2010/01/16 by Guillermo A. Lemarchand, Lemarchand, Guillermo A.
Business, Management and Accounting · Decision Sciences · #Business Strategy and Innovation #Digital Libraries (cs.DL) #FOS: Computer and information sciences #FOS: Physical sciences #Physics and Society (physics.soc-ph) #scientometrics and bibliometrics research
paper · pdf · doi:10.48550/arxiv.1001.2837
openalex publication_date 2010/01/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the national production of academic knowledge in all Iberoamerican\ncountries (IAC) between 1973 and 2007. We show that the total number of\nmainstream scientific publications listed in SCI,SSCI and A&HCI follows an\nexponential growth, the same as the national productivity expressed in the\nnumber of publications per capita. We also explore the temporal evolution of\nthe co-authorship patterns between a sample of 12 IAC responsible for 98% of\nthe total regional publications, with a group of other 45 nations. We show that\nthe scientific co-authorship among countries follows a power-law and behaves as\na self-organizing scale-free network, where each country appears as a node and\neach co-publication as a link. We develop a mathematical model to study the\ntemporal evolution of co-authorship networks, based on a preferential\nattachment strategy and we show that the number of co-publications among\ncountries growths quadraticly against time. We empirically determine the\nquadratic growth constants for 352 different networks within. We corroborate\nthat the connectivity of regional countries with larger scientific networks is\ngrowing faster than with other less connected countries. We determine the\ndates, at which the co-authorship connectivities trigger the self-organizing\nscale free network for each of the 352 cases. We find that the last follows a\nnormal distribution around year 1981.4 +/-2.2 and we connect the last effect\nwith a brain-drainage process generated in the region. We show how the number\nof co-publications Pki (t) between country k and country i, is related with a\npower-law against the coupling growth coefficients aki.\n