The phrase moving wall has an oxymoronic sound to it. Walls usually do not move — unless you are talking about the conceptual barrier that some publishers place on access to their online journal content.
Known also as embargo periods, moving walls disallow access to online journal literature for a specified period of its recent publication. Over time, this wall allows additional access and can be thought of as moving. While this can be very frustrating for researchers, it provides publishers with a strategy for encouraging libraries to continue to purchase access (print or individual online subscription) to current content.
This can be illustrated by looking at the journal Renaissance Quarterly. While the full text of back issues is available through JSTOR, the publisher has placed a three year moving wall on its content. Thus the most current issue available through JSTOR is the Winter 2003 issue. We would expect that shortly the Spring 2004 issue would become available to us.
It is important to note, however, that there is more than one way to scale a wall. In our example above, a search of Renaissance Quarterly using the library’s Full-Text Finder tool (available here), we find that the library also has a print subscription to Renaissance Quarterly that fills in the gap from 2003 to the present. (In addition, Project Muse has announced it will be adding Renaissance Quarterly to its database with full text available from 2007 onward.)
As with all things concerning periodicals, the issue of moving walls can be frustrating and confusing. But as a sage of old has said, Nothing in this world that’s worth having comes easy.
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