遇见数据集

Did Plant Patents Create the American Rose?

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NBER2011-04-01 更新2025-01-04 收录
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The Plant Patent Act of 1930 was the first step towards creating property rights for biological innovation: it introduced patent rights for asexually-propagated plants. This paper uses data on plant patents and registrations of new varieties to examine whether the Act encouraged innovation. Nearly

创建时间:
2011-04-01
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