Despite major global increases in the legal protection of intellectual property rights, the evidence of any increase in innovation remains inconclusive, though there has been a rise in technology transfers to emerging countries. Beyond these statements, economists know little about other potential impacts of stronger patents. This article sets out an agenda for additional research that economic and legal scholars should undertake to shed light on several important issues. Examples include policy complementarities between free trade agreements and IPRs, the channels through which stronger patents may affect productivity and trade, how IPRs interact with supply chains, and impacts of protection on inequality.
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