The Roots of Agricultural Innovation: Patent Evidence of Knowledge Spillovers

Matthew Clancy, Paul Heisey, Yongjie Ji and GianCarlo Moschini

No 27011, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: This chapter investigates the extent to which agricultural innovations draw on ideas originating outside of agriculture. We identify a large set of US patents for agricultural technologies granted between 1976 and 2018. To measure knowledge spillovers to these patents, we rely on three proxies: patent citations to other patents, patent citations to the scientific literature, and a novel text analysis to identify and track new ideas in the patent text. We find that more than half of knowledge flows originate outside of agriculture. The majority of these knowledge inflows, however, still originate in domains that are close to agriculture.

JEL-codes: O31 O34 Q16 (search for similar items in EconPapers)
Date: 2020-04
New Economics Papers: this item is included in nep-agr, nep-ino, nep-ipr, nep-sbm, nep-tid and nep-ure
Note: PR
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Citations: View citations in EconPapers (4)

Published as The Roots of Agricultural Innovation: Patent Evidence of Knowledge Spillovers , Matthew Clancy, Paul Heisey, Yongjie Ji, GianCarlo Moschini. in Economics of Research and Innovation in Agriculture , Moser. 2021

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Chapter: The Roots of Agricultural Innovation: Patent Evidence of Knowledge Spillovers (2020)
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