000			02129cam a22003257 4500
001			w8977
003			NBER
005			20211020113207.0
006			m o d
007			cr cnu||||||||
008			210910s2002 mau fo 000 0 eng d
100	1		_aLerner, Josh. _915166
245	1	0	_aPatent Protection and Innovation Over 150 Years / _cJosh Lerner.
260			_aCambridge, Mass. _bNational Bureau of Economic Research _c2002.
300			_a1 online resource: _billustrations (black and white);
490	1		_aNBER working paper series _vno. w8977
500			_aJune 2002.
520	3		_aThe paper seeks to understand the impact of the patent system on innovation by examining shifts in the strength of patent protection across sixty countries and a 150-year period. An examination of 177 policy changes reveals that strengthening patent protection appears to have few positive effects on patent applications by entities in the country undertaking the policy change, whether filings in Great Britain or the nation making the policy change are considered. Cross-sectional analyses suggest that the impact of patent protection-enhancing shifts were greater in nations with weaker initial protection and greater economic development, consistent with economic theory. I address concerns about the endogeneity of these changes by employing an instrumental variable approach.
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.
710	2		_aNational Bureau of Economic Research.
830		0	_aWorking Paper Series (National Bureau of Economic Research) _vno. w8977.
856	4	0	_uhttps://www.nber.org/papers/w8977
856			_yAcceso en línea al DOI _uhttp://dx.doi.org/10.3386/w8977
942			_2ddc _cW-PAPER
999			_c339214 _d297776