<div dir="ltr">To measure the effectiveness of these mandates MELIBEA has ranked and weighted OA mandates according to their specific requirements, and assigned them an overall score for strength.<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
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</div>There is a weak but significant positive correlation between the MELIBEA overall weighted score for mandate strength and the Public Access (PA) deposit rate.<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
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</div>If the policy stipulates that deposit is mandatory “For internal use” (e.g., research performance evaluation) deposit rate is significantly higher for PA and RA (Restricted Access) combined; deposit latency for PA alone is also significantly shorter.<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
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Finally, if the policy requires that the deposit must be done “At time of acceptance,” deposit rate is significantly higher for combined PA and RA deposits, compared to requiring deposit “At time of publication” or “Unspecified.” <div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"></div>This effect is significant only for 2011 and almost significant for all years combined.<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
</div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"></div><br><a href="http://eprints.soton.ac.uk/366815/">http://eprints.soton.ac.uk/366815/</a></div></div></div>