We use a novel approach to address the question of whether a union of sovereign countries can efficiently raise and allocate a budget, even when members are purely self-interested and participation is voluntary. The main innovation of our model is to explore the link between budget contributions...

The embryonically conceived vision for a free Europe as an inevitable premise to strengthen the modern civilization has been deeply rooted in the European unification as a powerful historical urge, deriving from the structural and irreversible crisis of European nation-states. The unification of...