The heterogeneous effect of software patents on expected returns: evidence from India
We contribute to the literature on the role of patenting for economic development by analyzing the impact of patent protection for software in India. We find that a proposed broadening of patent eligibility to include software in 2004 had a large positive effect on average returns for listed softwar...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/33754/ |
| _version_ | 1848794696637218816 |
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| author | Eberhardt, Markus Fafchamps, Marcel Helmers, Christian Patnam, Manasa |
| author_facet | Eberhardt, Markus Fafchamps, Marcel Helmers, Christian Patnam, Manasa |
| author_sort | Eberhardt, Markus |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We contribute to the literature on the role of patenting for economic development by analyzing the impact of patent protection for software in India. We find that a proposed broadening of patent eligibility to include software in 2004 had a large positive effect on average returns for listed software companies in India. An unanticipated reversal of this proposed policy change in 2005 resulted in substantial negative returns. We illustrate substantial heterogeneity in the dynamics of these effects across the sequence of events. We also find smaller firms to have been systematically and most significantly affected by the tightening of patent law with regard to software patents. |
| first_indexed | 2025-11-14T19:20:18Z |
| format | Article |
| id | nottingham-33754 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:20:18Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-337542020-05-04T18:07:51Z https://eprints.nottingham.ac.uk/33754/ The heterogeneous effect of software patents on expected returns: evidence from India Eberhardt, Markus Fafchamps, Marcel Helmers, Christian Patnam, Manasa We contribute to the literature on the role of patenting for economic development by analyzing the impact of patent protection for software in India. We find that a proposed broadening of patent eligibility to include software in 2004 had a large positive effect on average returns for listed software companies in India. An unanticipated reversal of this proposed policy change in 2005 resulted in substantial negative returns. We illustrate substantial heterogeneity in the dynamics of these effects across the sequence of events. We also find smaller firms to have been systematically and most significantly affected by the tightening of patent law with regard to software patents. Elsevier 2016-08-03 Article PeerReviewed Eberhardt, Markus, Fafchamps, Marcel, Helmers, Christian and Patnam, Manasa (2016) The heterogeneous effect of software patents on expected returns: evidence from India. Economics Letters, 145 . pp. 73-78. ISSN 0165-1765 Patents software innovation India http://www.sciencedirect.com/science/article/pii/S0165176516301720 doi:10.1016/j.econlet.2016.05.016 doi:10.1016/j.econlet.2016.05.016 |
| spellingShingle | Patents software innovation India Eberhardt, Markus Fafchamps, Marcel Helmers, Christian Patnam, Manasa The heterogeneous effect of software patents on expected returns: evidence from India |
| title | The heterogeneous effect of software patents on expected returns: evidence from India |
| title_full | The heterogeneous effect of software patents on expected returns: evidence from India |
| title_fullStr | The heterogeneous effect of software patents on expected returns: evidence from India |
| title_full_unstemmed | The heterogeneous effect of software patents on expected returns: evidence from India |
| title_short | The heterogeneous effect of software patents on expected returns: evidence from India |
| title_sort | heterogeneous effect of software patents on expected returns: evidence from india |
| topic | Patents software innovation India |
| url | https://eprints.nottingham.ac.uk/33754/ https://eprints.nottingham.ac.uk/33754/ https://eprints.nottingham.ac.uk/33754/ |