This article considers efforts to improve the effectiveness of global governance by examining the nature and consequences of informal global governance by focusing upon the operation of the Group of 20 (G20). It does so by considering the relationship between the existing forms of global constitutionalism, which indicate a foundational role for rules and laws within the existing forms of multilateral global governance, with informal forms of global governance operating with respect to the G20. This is conducted by considering a constructivist understanding of diplomatic practices which operate to sustain international cooperation and better manage multilateral global governance. The article contends that informal global governance is animated by an underlying non-legal disposition of global informalism and is evident in various informal diplomatic practices in the operation of the G20. The article seeks to better comprehend the consequences of informal global governance and challenge the field of global constitutionalism by highlighting the important but problematic nature of non-legal and informal global practices in contemporary global governance.

本文着眼于 20 国集团 (G20) 的运作，通过研究非正式全球治理的性质和后果，探讨了提高全球治理有效性的努力。它通过考虑现有形式的全球宪政（表明规则和法律在现有多边全球治理形式中的基础性作用）与非正规形式的全球治理形式之间的关系来实现这一点，这与 G20 相关。这是通过考虑对维持国际合作和更好地管理多边全球治理的外交实践的建构主义理解来进行的。文章认为，非正式全球治理受到全球非正式主义的潜在非法律倾向的推动，并在 G20 运作中的各种非正式外交实践中体现得淋漓尽致。本文旨在通过强调当代全球治理中非法律和非正式全球实践的重要但有问题的性质，来更好地理解非正式全球治理的后果并挑战全球宪政领域。