000 00341pab a2200145 454500
008 180718b2006 xxu||||| |||| 00| 0 eng d
100 _aHunt, Robert M.
245 _aWhen do more patents reduce R&D?
260 _c2006
300 _ap.87-91.
362 _aMay
650 _aPatents
773 _aAmerican Economic Review
909 _a69976
999 _c69976
_d69976