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Research collaboration networks in maturing academic environments.

Luís Filipe de Miranda Grochocki¹, Andrea Felippe Cabello²

¹Graduate School of Education, Stanford University, Stanford, CA USA.

|April 25, 2023

Summary

Research collaboration networks show growth over time, but scholars often collaborate with peers of similar academic endogamy status. This homophily effect is stronger in non-inbred scholars, potentially limiting information diversity.

Keywords:

Academic inbreeding Brazil Endogamy Higher education Homophily Social networks

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Area of Science:

Social Sciences
Bibliometrics
Network Analysis

Background:

Academic institutions foster collaboration networks.
Understanding network structure, particularly homophily, is crucial for knowledge dissemination.
High academic endogamy can influence collaboration patterns.

Purpose of the Study:

To analyze the structure of a research collaboration network with high academic endogamy.
To determine if academic collaboration is more frequent among scholars with shared endogamy status.
To investigate differences in tie formation likelihood between inbred and non-inbred scholars.

Main Methods:

Analysis of research collaboration data from 5,230 scholars at the University of São Paulo (2000-2019).
Network analysis to map collaboration patterns and identify homophily effects.
Statistical examination of tie formation based on endogamy status.

Main Results:

A growth in research collaborations was observed between 2000 and 2019.
Collaboration ties are more probable when scholars share the same endogamy status (inbred or non-inbred).
The homophily effect in collaboration is increasingly significant for non-inbred scholars.

Conclusions:

Academic collaboration networks exhibit homophily, with scholars preferring to connect with peers of similar endogamy status.
The University of São Paulo's network demonstrates this trend, particularly among non-inbred scholars.
This strong homophily may lead to missed opportunities for accessing diverse, non-redundant information within the institution.