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Max Planck Encyclopedia of Public International Law [MPEPIL]


David Weissbrodt†

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2023. All Rights Reserved.date: 25 June 2024

Citizenship — Migration — Immigration — Rights holders — Arbitrary (unreasonable) & discriminatory treatment standard — Non-discrimination

Published under the auspices of the Max Planck Institute for Comparative Public Law and International Law under the direction of Professor Anne Peters (2021–) and Professor Rüdiger Wolfrum (2004–2020). 

1 Immigration is defined as the act of entering a country other than one’s country of origin and settling there permanently. Immigrants are, at least initially, aliens, that is, persons who do not possess the nationality of a given State. Immigration is distinct from travel of a temporary nature—eg for study, trade, or tourism—although many individuals may initially migrate without intending to settle permanently (Migration). Immigrants migrate for complex economic, social, and political reasons. Many immigrants are compelled to leave their homelands in search of...
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