Citizenship laws are changing in many countries. Although cross-national differences in the laws regulating access to citizenship are today not as large as they were several decades ago, they are still very apparent. Globally, there is convergence over some citizenship policy dimensions, but...

A global monopoly supplier country of necessary inputs for the provision of global public goods has an incentive to subsidize these exports. The strategic interdependence in the global public good context reverses the "large country" incentives to manipulate the terms-of-trade. It is optimal for...

A global monopoly supplier country of green goods which are essential for the provision of global environmental public goods optimally subsidizes the export of such goods in an interior contribution equilibrium. This is not counterbalanced by an incentive to improve the terms-of-trade, since any...