Answers are grounded in this paper and cite their sources.
Coauthorship incidence rates are multifactorial and vary with factors associated with both complexity and competition. Coauthorship growth is likewise multifactorial and increasingly associated with research competition.
No takes yet. Share an insight, caveat, or question.
Brunson et al. (2017) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: