Introduction; 1. A model of Economic and Political Decision Making 2. Long-run Welfare Criteria 3. Public and Private Interaction under Reciprocal Externality 4. Voting Behavior on Municipal Public Expenditures: a Study in Rationality and Self-interest 5. Emprirical Evidence of Political Influence upon the Expenditure Policies of Public Schools 6. Majority Voting and Alternative Forms of Public Enterprise 7.Urban Transportation Parables 8. Rationalizing Decisions in the Quality Management of Water Supply in Urban-Industrial Areas 9. Geographic Spillover Effects and the Allocation of Resources to Education 10. Spatial Externalities in Urban Public Expenditures: A Case Study 11. The Role of Cost-Benefit Analysis in the Public Sector of Metropolitan Areas.