Title: Districts, spillovers, and government overspending
Description: Take an average city, keep its population and other characteristics constant, but divide it into a greater number of political districts, and you will get substantially greater government spending per capita.  Install a strong mayor form of city government, give the mayor veto power, and you may curtail the legislature's bias toward overspending.
Subjects: Budget deficits, Municipal finance, Municipal government, Waste in government spending