10.4000/proceedings.elpub.2018.16http://elpub.episciences.org/4604Morrison, HeatherHeatherMorrisonUniversity of Ottawa [Ottawa]https://ror.org/03c4mmv16Social Sciences and Humanities Research CouncilGlobal OA APCs (APC) 2010–2017: Major TrendsThe open access (OA) article processing charges (APC) project is a longitudinal study of the minority of fully OA journals (27% in 2016) that have APCs. The global average APC shows little change; in USD, 906 in 2010, 964 in 2016, 974 in 2017. The average masks currency differences and the impact of a growing market; new APC journals often start with an APC of 0. Traditional commercial scholarly publishers are entering the OA market: the largest OA journal publishers’ portfolios in 2017 were Springer, De Gruyter, Elsevier, and Wolters Kluwer Medknow. However, these are a small portion of OA journal publishing which is still marked by a very long tail and extensive involvement by very small, often university or society publishers. APC pricing shows a wide range and variability. The APC market can be described as volatile.economicsOAAPCs[SHS.INFO]Humanities and Social Sciences/Library and information sciencesAttribution - Pas d'Utilisation Commerciale - Pas de Modification 4.0 International (CC BY-NC-ND 4.0)2018-06-202018-06-202018-06-20engjournal article https://hal.science/hal-01816699v1open accesshttp://elpub.episciences.org/4604/pdfVoRapplication/pdfElPub - ELectronic PUBlishingConnecting the Knowledge Commons: From Projects to Sustainable InfrastructureLong PapersResearchersStudents