Implications of Product Patents: Lessons from Japan

Reiko Aoki and Tomoko Saiki

Hi-Stat Discussion Paper Series from Institute of Economic Research, Hitotsubashi University

Abstract: Product (material) patents were introduced to Japan in 1976. We examine data prior to 1976 and years immediately following to determine the law's effect on domestic pharmaceutical market, innovation by pharmaceutical firms, and relationship of the Japanese market to the rest of the world. There is evidence that the domestic market became more concentrated and quality of pharmaceutical innovation changed after the introduction. This is because introduction of product patents is different from simple strengthening of existing technology protection such as increasing breadth.

Date: 2005-04
New Economics Papers: this item is included in nep-his, nep-ino, nep-sea and nep-tid
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:hst:hstdps:d05-85

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