The aim of the PhD thesis is to study the demand and supply sides of local public good provision. Demand driven models, such as the median voter theorem or the Meltzer and Richard hypothesis, state that the characteristics and preferences of the electorate are the main forces driving public decisions. Models focusing on the supply side argue instead that the composition of governing bodies (e.g., number of parties, ideology of elected officials) is the key explanatory factor. The thesis seeks to shed light on the connection between the two categories of explanations, through a series of empirical essays, using a quasi-experimental approach to study the local public sector in France and Finland.The analysis of operating expenditures of the F...