Green Public Procurement in open access and traditional journals: a comparative bibliometric analysis

PurposeGreen Public Procurement (GPP) has recently gained attention in the academic and policy arenas since climate change has uncovered the need to be addressed by both private companies and public entities. Because of this growing interest this study aims to explore the most influential journals, publishers, categories, topics and therecent trends and future research lines in GPP.Design/methodology/approachBased on the Web of Science database, 1,008 articles from 1990 to November 2023 devoted to GPP are analysed by using Bibliometrix, an R-tool to perform bibliometric analysis.FindingsThis study introduces the following findings. The most influential journals by far are Journal of Cleaner Production and Sustainability, differing in that the latter is open access (OA) while the former publishes through traditional subscription (TS). This result also occurs regarding the main publishers (Elsevier and MDPI).Social implicationsGPP is a political commitment that contributes to improving the efficiency of the economies and that has aroused the interest of the scientific community. The paper can provide important insights for GPPs formulation in the areas of procurements and literacy.Originality/valueThe paper leads a debate on the opportunities or threats that the OA journals present for the dissemination of scientific knowledge of GPP, compared to TS publications in the same field.