This article considers the past, present, and future of domestic investment laws. Its focus is on the ‘facilitative’ investment law, which aims to encourage foreign investment by granting substantive protections to foreign investors and consent to international arbitration over disputes with foreign investors. The article first contends that states had independent reasons to enact such facilitative investment laws alongside investment treaties, even though investment treaties perform very similar functions. Secondly, the article argues that investment laws can be characterized either as unilaterally assumed international obligations of states or simply as domestic laws of states, with differing consequences under each characterization. Thirdly, the article proposes four possible futures for facilitative investment laws: contamination, continuation, compromise, and contestation.

中文翻译：

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国内投资法与国际经济法的过去、现在和未来

本文考虑了国内投资法的过去、现在和未来。它的重点是“便利”投资法，旨在通过向外国投资者提供实质性保护并同意就与外国投资者的争端进行国际仲裁来鼓励外国投资。文章首先争辩说，即使投资条约执行非常相似的功能，各州也有独立的理由在投资条约的同时颁布此类促进投资法。其次，文章认为，投资法既可以被描述为国家单方面承担的国际义务，也可以简单地被描述为国家的国内法，在每种描述下都有不同的后果。第三，文章提出了促进投资法的四种可能的未来：污染、延续、