00903nam0-22003131i-450-990003051270403321000305127FED01000305127(Aleph)000305127FED0100030512720000920d--------km-y0itay50------baitaITDo Stronger Patents induce More Innovation?Evidence from the 1988 Japanese Patent Law ReformsMariko Sakakibara, Lee BranstetterWorking paper seriesNBER7066GiapponeBrevetti e R&SF/1.322F/3.14G/1.4Branstetter,Lee G.Sakakibara,MarikoITUNINARICAUNIMARCBK990003051270403321PaperSESSESDo Stronger Patents induce More Innovation462891UNINAING01