作者：Hui Dong ，Dan Luo ，Xudong Zeng ，Zhentao Zou
关键字：Research collaboration Cross-affiliation Power laws Accelerated network Preferential attachment
摘要/Abstract
A new means to promote collaboration is for one researcher to work across multiple institutions. We show that, accompanying the fast growth of cross-affiliation in financial research, scale-free power laws characterize the resulting highly-skewed distributions of top finance journal publications of worldwide institutions. We propose an explanation of the empirical power laws, based on a network model featuring two identified mechanisms: nonlinear growth and linear preferential attachment. The model indicates that preferential allocation of 87% of all publications effectively engenders dispersion in the research output of the institutions, while accelerated growth in collaboration provides a counterforce that restores their homogeneity
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https://www.sinoss.net/qikan/2019/1219/14722.html