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Posted by Mark Thoma on Thursday, March 28, 2013 at 12:03 AM in Economics , Links | Permalink Comments (0) Out and about today, so quickly: Do intellectual property rights on existing technologies hinder subsequent innovation?, EurekAlert : A recent study (Journal of Political Economy 121:1 February 2013) suggests that some types of intellectual property rights discourage subsequent scientific research. "The goal of intellectual property rights – such as the patent system – is to provide incentives for the development of new technologies. However, in recent years many have expressed concerns that patents may be impeding innovation if patents on existing technologies hinder subsequent innovation," said Heidi Williams, author of the study.