This is a repository copy of Strategic Behaviour of Firms in a Duopoly and the Impact of Extending the Patenting Period. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/10899/ Monograph: Brown, H., Hole, A.R. and Roberts, J. (2010) Strategic Behaviour of Firms in a Duopoly and the Impact of Extending the Patenting Period. Working Paper. Department of Economics, University of Sheffield ISSN 1749-8368 Sheffield Economic Research Paper Series 2010014 eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version - refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher’s website. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.