The desire for economic cooperation
The desire for political unity
The desire for social cohesion
The desire for shared military protection
Option states lost their credibility and political rights following world war two
The global system is anarchic
States trust long-term cooperation and alliances
Humans are naturally cooperative
Their economic equality and compatibility
Like-mindedness among their elites.
The absence of interest group activity.
The capacity of decision-makers to respond to public demands.