In this article, I evaluate the status of law and economics in Japan from 1990 to 2016. Through the literature review, we can see distinctive features that did not exist in 1990: the establishment of the Japan Law and Economics Association, change in methodologies, increase in empirical research, expansion of research fields, and influencing policies and statutes in the real world. I then conduct case studies about how law and economics research in Japan offers policy recommendations. I present two examples: repeal of protection of short-term leases and establishment of fixed-term building leases. Finally, I explore the outlook of the next stage of law and economics in Japan. More emphasis on empirical research and more English publications on law and economics in Japan are important to move to the next stage.

中文翻译：

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日本的法律和经济学：孵化阶段后的 25 年

在本文中，我评估了 1990 年至 2016 年日本法律和经济学的现状。通过文献回顾，我们可以看到 1990 年不存在的鲜明特征：日本法经济学协会的成立，方法论的变化，实证研究的增加，研究领域的扩展，以及影响现实世界的政策和法规。然后，我对日本的法律和经济学研究如何提供政策建议进行案例研究。我举两个例子：废除对短期租约的保护和建立定期建筑物租约。最后，探讨日本法经济学下一阶段的前景。更加重视实证研究和更多关于日本法律和经济学的英文出版物对于进入下一阶段很重要。