000			02332cam a22003737 4500
001			w27011
003			NBER
005			20211020103801.0
006			m o d
007			cr cnu||||||||
008			210910s2020 mau fo 000 0 eng d
100	1		_aClancy, Matthew S.
245	1	4	_aThe Roots of Agricultural Innovation: _bPatent Evidence of Knowledge Spillovers / _cMatthew S. Clancy, Paul Heisey, Yongjie Ji, GianCarlo Moschini.
260			_aCambridge, Mass. _bNational Bureau of Economic Research _c2020.
300			_a1 online resource: _billustrations (black and white);
490	1		_aNBER working paper series _vno. w27011
500			_aApril 2020.
520	3		_aThis 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.
530			_aHardcopy version available to institutional subscribers
538			_aSystem requirements: Adobe [Acrobat] Reader required for PDF files.
538			_aMode of access: World Wide Web.
588	0		_aPrint version record
690		7	_aO31 - Innovation and Invention: Processes and Incentives _2Journal of Economic Literature class.
690		7	_aO34 - Intellectual Property and Intellectual Capital _2Journal of Economic Literature class.
690		7	_aQ16 - R&D • Agricultural Technology • Biofuels • Agricultural Extension Services _2Journal of Economic Literature class.
700	1		_aHeisey, Paul.
700	1		_aJi, Yongjie.
700	1		_aMoschini, GianCarlo. _917173
710	2		_aNational Bureau of Economic Research.
830		0	_aWorking Paper Series (National Bureau of Economic Research) _vno. w27011.
856	4	0	_uhttps://www.nber.org/papers/w27011
856			_yAcceso en línea al DOI _uhttp://dx.doi.org/10.3386/w27011
942			_2ddc _cW-PAPER
999			_c321112 _d279674