Abstract
Cosmopolitans oppose excluding persons from political institutions on grounds of geographic location. But this problem of illegitimate exclusion is parallel to an equally pressing, but widely ignored, problem of illegitimate inclusion. Best understood, cosmopolitanism requires small-scale territorial self-determination. Impoverished states' inability to exclude powerful governments and regulatory institutions from decision procedures is a grave injustice that cosmopolitans ignore. Cultural groups have a strong interest in maintaining effective control of land use by excluding nonresidents. Appealing to democracy and political equality, the argument shows that territorial self-determination, exercised at geographically small scales, is necessary for global justice