Two studies suggest trouble ahead for paywall journals

(Phys.org)—Two independent studies looking at two aspects of paywalls versus free access to research papers suggest that trouble may lie ahead for traditional journals that continue to expect payment for access to peer-reviewed research papers. In the first study, a small team of researchers from the U.S. and Germany looked at the number of freely available papers on the internet using a web extension called Unpaywall—users enter information and the extension lists sources online for