000 02379cam a22003737 4500
001 w21455
003 NBER
005 20211020105530.0
006 m o d
007 cr cnu||||||||
008 210910s2015 mau fo 000 0 eng d
100 1 _aHall, Bronwyn H.
_912252
245 1 0 _aTechnology Entry in the Presence of Patent Thickets /
_cBronwyn H. Hall, Christian Helmers, Georg von Graevenitz.
260 _aCambridge, Mass.
_bNational Bureau of Economic Research
_c2015.
300 _a1 online resource:
_billustrations (black and white);
490 1 _aNBER working paper series
_vno. w21455
500 _aAugust 2015.
520 3 _aWe analyze the effect of patent thickets on entry into technology areas by firms in the UK. We present a model that describes incentives to enter technology areas characterized by varying technological opportunity, complexity, and the potential for hold-up due to the presence of patent thickets. We show empirically that our measure of patent thickets is associated with a reduction of first time patenting in a given technology area controlling for the level of technological complexity and opportunity. Technological areas characterized by more technological complexity and opportunity, in contrast, see more entry. Our evidence indicates that patent thickets raise entry costs, which leads to less entry into technologies regardless of a firm's size.
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 _aK11 - Property Law
_2Journal of Economic Literature class.
690 7 _aL20 - General
_2Journal of Economic Literature class.
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.
700 1 _aHelmers, Christian.
700 1 _avon Graevenitz, Georg.
710 2 _aNational Bureau of Economic Research.
830 0 _aWorking Paper Series (National Bureau of Economic Research)
_vno. w21455.
856 4 0 _uhttps://www.nber.org/papers/w21455
856 _yAcceso en lĂ­nea al DOI
_uhttp://dx.doi.org/10.3386/w21455
942 _2ddc
_cW-PAPER
999 _c326667
_d285229