International charter city
An International charter city is a city established or governed in agreement between two sovereign powers. Specifically, it refers to a situation in which a guarantor from a developed country would create a city within a developing host country, or would assume control of an extant city. The guarantor would administer the region, with the power to create their own laws, judiciary, and immigration policy outside of the control of the host country. International charter cities are intended to be a benefit to citizens of said city by giving them an additional option about what system of economic polices they want to live under. Under this theory, charter cities would adopt more pro-business polices than the host county, including lower taxes, less regulations, and protection of property rights, which would encourage international investment. In the case of Crona, much of this investment not only comes as result of pro-business policies but increased connections to investors and economic systems in the Occident.
The sovereignty of an international charter city is, in some cases, unclear and depends on the specific arrangement. Notionally, sovereignty resides with the initial host country, but practically it is executed by the guarantor nation. This creates a specific and unique jurisdiction which is part of neither country, and many have argued that the existence of self-government within these charter cities makes the cities themselves sovereign and functionally independent with significant economic reliance on foreign nations.