“…This comment is, however, a naïve one, since it is likely not merely a choice not to work together (even on items of common interest such as SDGs), but a more fundamental systemic issue. We suggest that may be a variety of drivers behind this lack of engagement including: geographic separation; developing rather than developed research infrastructure to support international collaboration such as dedicated travel bursaries, international fellowship schemes, and technological infrastructures to support online collaboration; lack of links at a geopolitical level that either hinder or simply do not promote the establishment of links and relationships through researcher mobility that can support ongoing research relationships (Chikanda et al, 2016 ; Robinson-Garcia et al, 2019 ; Wagner, 2019 ; Robinson-Garcia and Ràfols, 2020 ; OECD, 2021 ). However, from our analysis, Figure 7 makes it clear that, even when viewed from the perspective of low-income countries themselves, engagement with other low-income countries is relatively lower—and on topics that are important and potentially highly meaningful to low-income countries.…”