We examine the incentives of regions in a country to unite or toseparate. We find that smaller regions have greater incentives tounite, relative to larger regions. We show, however, that on thewhole, majority voting on separation and union generates excessiveincentives to separate. This leads us...

Introduction -- Networks : concepts and empirics -- Games on networks -- Coordination and cooperation -- Social learning -- Social networks in labor markets -- Strategic network formation : concepts -- One-sided link formation -- Two-sided link formation -- Research collaboration among firms