Although patent systems have been widely used both historically and internationally, there is nonetheless a tremendous amount of controversy over whether patent systems, in practice, improve the alignment between private returns and social contributions. In this article, I describe three parametershow the disclosure function affects research investments, how patent strength affects research investments in new technologies, and how patents on existing technologies affect follow-on innovationneeded to inform the question of how patents affect research investments, and review the available evidence that has attempted to empirically estimate these parameters.
Annual Review of Economics – Annual Reviews
Published: Aug 2, 2017
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