Open Access Market Sizing Update 2019 - Delta Think

"Delta Think’s OA Market Sizing shows that the open access market continues to grow faster than the underlying journals publishing market, and faster than we previously expected. (Market Size represents revenue generated by providers or, conversely, costs incurred to buyers of content.) We estimate it to have been worth $675m in 2018 and on track to grow to over $758m in 2019...."