Ostrom showed convincingly that smaller more local policing was more effective and less expensive. Size (scale) really matters and bigger is often not better. Large scale models cannot contain requisite variety unless they contain nested models. The whole move toward consolidation of government in the 70's and 80's was misguided. What is needed is 'polycentric governance".
See Ostrom's Nobel prize speech here.
VIMEO 148832104 Published Sunday, December 13, 2015