How Should We Protect Innovations?

How Should We Protect Innovations?
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发表时间:
2019
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通讯作者:
T. Ikeda;Tadanobu Tanno
T. Ikeda;Tadanobu Tanno
中科院分区:
其他
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作者:
T. Ikeda;Tadanobu Tanno

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我们提出了简单的古诺和斯塔克伯格模型来研究保护创新免受模仿的方法。我们发现,政策制定者应该允许一些模仿,如果创新效率低,即使模仿可以被禁止在没有成本。此外,我们证明,社会福利的垄断可以超过古诺和Stackelberg双头垄断,相对有效的创新和高度的模仿。因此,在创新效率和模仿程度都很高的地方,为了社会福利,可以支持进入限制。
We present simple Cournot and Stackelberg models to study methods for protecting innovations from imitation. We find that policymakers should allow some imitation if innovation efficiency is low, even when imitation can be prohibited at no cost. Moreover, we demonstrate that social welfare in a monopoly can exceed that in the Cournot and Stackelberg duopoly, given relatively efficient innovation and a high degree of imitation. Therefore, where both innovation efficiency and degree of imitation are high, entry restrictions can be supported for social welfare.